Canada warned on Wednesday that travelers may face "entry restrictions" if they enter the United States with an "X" gender marker on their passports.The Canadian government updated its travel advisory this week, cautioning that those carrying passports with the "X" designation could encounter problems traveling to the U.S."While the Government of Canada issues passports with a ‘X’ gender identifier, it cannot guarantee your entry or transit through other countries," the advisory states. "You might face entry restrictions in countries that do not recognize the ‘X’ gender identifier. Before you leave, verify this information with the closest foreign representative for your