Canada became the second country in the world, after Uruguay, to legalize recreational marijuana Wednesday. The Canadian government says it will also move to pardon people who have previously been convicted of low-level marijuana possession. U.S. Customs and Border Protection says the new law in Canada will not affect existing marijuana laws in the U.S. and that anyone crossing the border could face marijuana-related questioning. Canadians who receive pardons for marijuana-related offenses could also be “deemed inadmissible” to enter into the United States.