WASHINGTON (AP) - President Bush is poised to veto legislation that would bar the CIA from using waterboarding - a technique that simulates drowning - and other harsh interrogation methods on terror suspects.

"President Bush's veto will be one of the most shameful acts of his presidency," Sen. Edward Kennedy, D-Mass., said in a statement Friday. "Unless Congress overrides the veto, it will go down in history as a flagrant insult to the rule of law and a serious stain on the good name of America in the eyes of the world."

He noted that the Army field manual contends that harsh interrogation is a "poor technique that yields unreliable results, may damage subsequent collection efforts, and can induce the source to say what he thinks the (interrogator) wants to hear."