You know for sure it's ONLY international calls? No you don't because the admin refuses to talk about their secret program; they just claim they have a right to go around the law.
With a warrant from the court the gov't can tap any person's tele they suspect of doing something wrong - or if time doesn't permit, tap and then get the warrant. It's the LAW!
BTW, love your line "imagine how many innocent canadians..." - it's the new RNC mantra, right?
"If we talk about the economy, we'll lose"
-Bush44's top aide
"This campaign is not about issues"
-Rick Davis, Bush44's Campaign Manager