Why did Bush stop looking for Osama bin Laden BEFORE 9/11?

"http://www.truth-out.org/new-documents-claim-intel...

"I kept the original classifications on the slides, as historical documents, although the fact that al-Qa'ida was likely to attack the World Trade Center and the Pentagon was clearly no longer classified." (Emphasis added.)

Iron Man further elaborated on this point by stating that high-level DoD officials held discussions about DO5's intelligence activities between the summer of 2000 and June 2001 revolving around al-Qaeda's interest in striking the Pentagon, the World Trade Center (WTC), and other targets.

In other words, the Bush administration was fully aware the terrorist organization had set its sights on those structures prior to 9/11 and, apparently, government officials failed to act on those warnings.

For example, Iron Man states in his letter that in the summer of 2000, DO5 briefed USJFCOM senior intelligence officials and staffers, including the deputy commander in chief, on the "WMD Threat to the U.S."