[Warning - politics ahead...]
Abu Musab Zarqawi is widely regarded as masterminding most of the bombings and terrorist-caused deaths in Iraq. He also claimed responsibility for the beheading of Nick Berg, the poor, decent civilian who was executed yesterday.
Bush and his National Security Council turned down the chance to capture this terrorist and destroy his main operations not once, not twice, but THREE times as long ago as two years ago. It was apparently more important to go forward with the invasion of Iraq than go after a known, proven high-up member of Al-Qaeda. That policy has come back to haunt them and it is typical of how the whole war on terror and now the war in Iraq have been mismanaged, mishandled and just plain bungled.
Details here.