Former FBI chief Tom Ridge claims Bush officials tried to politicize terror alert level . Ridge says Rumsfeld , who sought action after Osama bin Laden tape surfaced . At first , terror alert level was not raised . In new book , Ridge claims incident led him to leave office .
Former DHS chief Tom Ridge claims Bush officials tried to politicize terror alert level . Ridge says Rumsfeld , Ashcroft sought action after Osama bin Laden tape surfaced . At time , terror alert level was not raised . In new book , Ridge says incident led him to leave government .