From Homeland Security Secretary Michael Chertoff to the head of the U.S. Military Northern Command, "gut feelings" suggest an increased risk for terror attacks. Sec. Chertoff said he had no actionable intelligence but a homeland security bulletin described people trying to sneak fake bomb components aboard jetliners. Homeland Security refers to these efforts as "terror dry runs". Are they from domestic or international terrorists, or are they tests conducted by the department itself to check the quality of their inspection process? The department didn't release enough information to know the answer, but I know what my "gut" is telling me.