Republican politician Mitt Romney was physically threatened by a violent passenger on an Air Canada flight leaving Vancouver this morning. Mr. Romney, who has been in Vancouver since Friday for the Olympic Winter Games, did not respond to the attack. Instead, he allowed the airline crew to deal with the incident, according to his spokesman Eric Fehrnstrom. Mr. Romney, 62, and his wife, Ann, were sitting in Row 15 of the economy section of the Embrarer 190 airplane, waiting for the plane to take off when the incident happened. The man sitting in front of Mr. Romney’s wife dropped his seat back and when Mr. Romney asked him to move it upright for takeoff, the man became “physically violent.” Another report said that the man tried to strike Mr. Romney. “Gov. Romney did not retaliate,” said Mr. Fehrnstrom.