OTTAWA (AFP) - Canada dismissed Russia's flag-planting at the North Pole on Thursday as a "15th century" stunt that does not bolster its disputed claim to the resource-rich Arctic. "Look, this isn't the 15th century. You can't go around the world and plant flags and say, 'We're claiming this territory,'" Foreign Minister Peter MacKay told broadcaster CTV. Earlier, a Russian mini-submarine reached the bottom of the Arctic Ocean under the North Pole at a depth of 4,261 meters (13,980 feet), to carry out scientific tests and leave a Russian flag. The dive is believed to be the first of its...