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Prenatal exposure to ambient air pollution was associated with an increased risk of autism spectrum disorder, a new study finds. Pregnant women in Vancouver who were exposed to the highest level of environmental nitric oxide, an airborne, traffic-related pollutant, were more likely to give birth to children later diagnosed with autism, the researchers say.Autism spectrum disorder, a developmental disability, is characterized by problems with communication and social interaction with accompanying repetitive behavior patterns.Lief Pagalan, lead author of the study and a member of the faculty of health sciences at Simon Fraser University, cautions that the study, published Monday in the medical journal JAMA Pediatrics, showed only an association between prenatal exposure to nitric oxide and autism rates. It did not prove that air pollution caused autism.Experts emphasize that the exact causes of autism remain unknown, and some say the researchers in this study did not analyze every potential risk factor.Still, the research "adds to the growing concern that there may be no safe levels of exposure to air pollution," Pagalan wrote in an email."Not only did we have access to rich data, enabling us to develop one of the largest studies to date, but we were also able to conduct this study in a city with relatively lower levels of air pollution," he said. 1375

President Donald Trump asked Sen. Pat Toomey, a Pennsylvania Republican who's worked on a bill to strengthen background checks for gun purchases, whether he left out a proposal to raise the gun purchasing age to 21 out of his measure because he is "afraid of the NRA.""Because you're afraid of the NRA, right?" Trump said at a White House meeting Wednesday, when Toomey told him his bill with West Virginia Democratic Sen. Joe Manchin does not address lifting the age of purchasing long guns.The Manchin-Toomey bill has been circulating since 2013 in the wake of the Sandy Hook Elementary School massacre and is primarily focused on expanding background checks.That bill is different from the more limited "Fix NICS" bill, from Sens. John Cornyn and Chris Murphy, which offers financial incentives for state and local governments to report information to the National Instant Criminal Background Check System.  923

President Donald Trump has signed an executive order aimed at strengthening child-welfare programs nationwide. Health and Human Services Secretary Alex Azar hailed the order as a step toward major reforms. The goals include curtailing child maltreatment, strengthening adoption programs and encouraging support for at-risk families so fewer children are placed in foster care. The order comes as child-protection agencies across the U.S. struggle with effects related to the coronavirus pandemic, including disrupted family court proceedings and new difficulties recruiting foster parents. 597

President Donald Trump said Thursday his administration will impose tariffs on steel and aluminum imports next week, a highly controversial move that Trump framed along national security lines.Trump said the US will impose a 25% tariff on steel imports and 10% tariff on aluminum, capping a fierce, months-long internal debate that divided some of the President's top advisers. Anticipating the move, experts have said the move is likely to invite retaliatory measures from foreign countries.It was not immediately clear whether Trump would exempt some countries from the tariffs, as his national security advisers have urged him to do to avoid hurting key US allies.Trump announced the move during a hastily arranged listening session with steel and aluminum executives, even though the policy he announced is not yet ready to be implemented.The President told aides on Wednesday to lay the groundwork for him to announce new tariffs on steel and aluminum imports the next day, sending them scrambling to determine what specific policy he could announce and others racing to contact executives and union representatives from the industry to attend the announcement at the White House, multiple sources said.Some of the aides who have been crafting the policy were caught off guard by the plans for an announcement, which The Washington Post first reported Wednesday night.The White House added a last-minute event with Commerce Secretary Wilbur Ross and steel and aluminum industry representatives at the White House on Thursday morning.Earlier on Wednesday, lawyers in the White House Counsel's Office and the Justice Department's Office of Legal Counsel made clear to policy staffers that they needed more time -- perhaps several more weeks -- to turn the Commerce Department's recommendations into a proclamation that would impose the tariffs Trump has sought to levy on steel and aluminum imports."Maybe he wants to make an announcement, but the proclamation isn't ready," one White House official said. "Without the proclamation, nothing has legal force."As of mid-morning on Thursday, a White House official said there were no firm plans for an announcement and one White House official said the discussion was going "back and forth" on whether an announcement was feasible.The President, meanwhile, continued to press on via Twitter: "Our Steel and Aluminum industries (and many others) have been decimated by decades of unfair trade and bad policy with countries from around the world. We must not let our country, companies and workers be taken advantage of any longer. We want free, fair and SMART TRADE!"It wasn't immediately clear what sparked Trump's sudden desire to make the policy announcement within 24 hours, but his directive for a next-day announcement came as the White House was engulfed in its latest string of negative headlines.On Wednesday alone, one of Trump's longest-serving aides Hope Hicks announced her resignation, his son-in-law Jared Kushner was the subject of several stories raising questions about his foreign and business entanglements and infighting within the West Wing once again seized the spotlight.The tariff announcement would have served as a mild reprieve, sparking off a debate about the merits of a policy that is likely to invite retaliation from other countries.The mad scramble Trump set off on Wednesday was just the latest chaotic chapter in the chaotic policy-making on trade issues that has defined the Trump administration.Trade policy, and the debate over steel and aluminum measures in particular, has been the subject of bitter infighting within the Trump administration.The question of whether to impose the protectionist measures Trump has long favored on steel and aluminum set off a bitter debate between warring factions inside the White House. The debate pitted the National Economic Council director Gary Cohn, Treasury Secretary Steve Mnuchin, national security adviser H.R. McMaster and Defense Secretary James Mattis against the proponents of protectionist trade policies, namely Ross, US Trade Representative Robert Lighthizer and trade adviser Peter Navarro.But in recent weeks it became obvious that Trump was sticking with his original instincts and readying a decision to impose tariffs or quotas on steel and aluminum imports.The departure of Rob Porter, the White House staff secretary who had sought to play a leadership role in trade policy by organizing a weekly meeting on the issue, helped speed up the process to ready the protectionist measures as Lighthizer took over the process, one White House official said.The opposition to the measure was twofold, with the President's economic advisers arguing that the protectionist measures would lead to damaging retaliation from other countries and unsettle global markets. The President's national security and defense advisers warned about harmful impacts on steel-producing US allies.It appeared likely Trump would grant some exemptions as he moved to impose trade duties on the steel and aluminum imports -- but as of Thursday morning, nothing was certain.  5105

President Donald Trump acknowledged for the first time that he repaid his lawyer Michael Cohen more than 0,000 for expenses Cohen incurred during the 2016 presidential election, according to a financial disclosure form released Wednesday.The document did not explicitly state what the payments were for. But Trump's lawyers have previously said that Trump reimbursed Cohen for the 0,000 hush money payment he made to porn star Stormy Daniels.Daniels has alleged she had a sexual encounter with Trump in 2006, a claim he denies."In 2016, expenses were incurred by one of Donald J. Trump's attorneys, Michael Cohen," read a footnote on the form, which was released by the Office of Government Ethics. "Mr. Cohen sought reimbursement of those expenses and Mr. Trump fully reimbursed Mr. Cohen in 2017. The category of value would be 0,001-0,000 and the interest rate would be zero." 899