By Cristin Schmitz (March 24, 2023, 5:15 PM EDT) -- Canada and the United States have agreed on a protocol to expand the existing Safe Third Country Agreement’s (STCA) application beyond official ports of entry to the entire Canada-U.S. land border, including internal waterways, effective 12:01 a.m. (EDT) March 25, Prime Minister Justin Trudeau and U.S. President Joseph Biden announced, following the American president’s address to the House of Commons in Ottawa....