Then, turning about the corner of a wall-like outcropping of granite, we came upon a smooth area of two or three acres before the base of the towering pile of ice and rock that had baffled us for days, and before us beheld the dark and cavernous mouth of a cave.
Canada, Mexico Borders to Be Affected by 2008. Millions of Americans will be required to show passports when they reenter the United States from Canada, Mexico and the Caribbean by 2008 under new rules announced yesterday by the State and Homeland Security departments.
The US passport card was introduced with the Western Hemisphere Travel Initiative of 2009. The initiative requires that all US travelers provide proof of identity and citizenship when crossing onto US soil.