Could George W. Bush end up behind bars?

Could George W. Bush or some of his top aides end up behind bars?

It's extremely unlikely, but the Obama administration is taking its first steps along a path that could lead in that direction, with the investigation of Central Intelligence Agency interrogators involved in the war on terror.

The probe will focus on whether interrogators exceeded their instructions and broke the law when, for example, they choked a prisoner until he lost consciousness or threatened another one with a gun and a power drill.

Republicans immediately criticized the new investigation and even some Democrats said it would be unpopular.