A new video of al-Qaida's No. 2 leader mocks US President George W. Bush and American legislation requiring the withdrawal of US troops from Iraq, saying the bill would rob the group's fighters of the chance to kill more Americans. Osama bin Laden's deputy Ayman al-Zawahri derided the new US-backed Baghdad security plan, recounting an April 12 suicide bombing in Baghdad's heavily protected Green Zone when an attacker slipped through security and killed a Sunni legislator in the Iraqi parliament's cafeteria. An al-Qaida-led amalgam of Sunni insurgents in Iraq claimed responsibility. "And lest Bush worry, I congratulate him on the success of his security plan, and I invite him on the occasion for a glass of juice, but in the cafeteria of the Iraqi parliament in the middle of the Green Zone," al-Zawahri said in the video released Saturday. The video was obtained Saturday by US-based monitoring groups who released a transcript to media. "This bill will deprive us of the opportunity to destroy the American forces which we have caught in a historic trap," al-Zawahri said, according to a transcript released by the monitoring group SITE. The bill is evidence of American "failure and frustration," he added.