The federal government also includes a list of general tips and advice for Canadian travellers visiting the U.S. urging them to stay vigilant about risks related to potential crimes, fraud, terrorism, hiking and mountaineering, as well as air travel and crossing the U.S. border into Mexico.Homeland Security Secretary Kristi Noem with the Trump administration’s immigration crackdown despite waves of unrest across the U.S.Hours later, a federal judge issued a temporary restraining order directing Trump to return control of the National Guard to California.The order, which takes effect at noon Friday, said the deployment of the guard was illegal and both violated the 10th Amendment and exceeded his statutory authority.— with files from The Associated Press. , The updated advisory focuses on Los Angeles in particular. Receive full access to our market insights, commentary, newsletters, breaking news alerts, and more., The government of Canada has upgraded its safety and security advisory for travellers visiting the Los Angeles area and some other U.S. cities due to ongoing demonstrations..