...because they might be listening. Bush's line that "Our intelligence activities strictly target al-Qaeda and their known affiliates" doesn't quite jive with the collection of data on the phone calls of "tens of millions of Americans". That's enough al-Quaeda and known affiliates to have destroyed this country long ago. Note that he said "known affiliates".
Is it just me or is this country becoming more and more like the various "evil regimes" Bush rails against?