Bush limiting 9/11 investigation?

Bush to 9/11 Families: 'Enough Already', by Bill Berkowitz, explores some of the non-cooperation by the Bush regime with the 9/11 investigation. In particular, the failure to grant any of the additional time requested by the commission heading the investigation.

It may just be electioneering (the delay could bring the report 'too close' to the November election), but it also leaves open questions about whether there might have been complicity or a cover up by the regime.