Their eyes, our skies

[CHIMO]

We could hardly hear it, though we could see it, but it had seen us first.

Today they're flying in Pakistan and Afghanistan. A technician in Las Vegas can fire a missile into faraway Iraq.

But in a development framed by fear and pork barrel politics, the U.S. is now cruising the skies over its northern border, worried what lurks on the Canadian side.

We hear why from CBC Security Correspondent Bill Gillespie, at the Grand Forks Air Force base in North Dakota.

http://www.cbc.ca/dispatches/2010season/2011/03/30/march-31-april-3-from-grand-forks-north-dakota---ukraine---amman-jordan---bunya-democratic-republic/