This article is from CNN:

"In one case last September, a couple in Baltimore, Maryland, checked a plastic bag with a block of processed cheese taped to another plastic bag containing a cell phone charger. Earlier this month in San Diego, California, a passenger checked a bag containing two ice packs covered in duct tape. The ice packs had clay in them instead of the normal blue gel."

"At least three of the four incidents involved U.S. citizens, the advisory says. While "initial investigations do not link them with criminal or terrorist organizations," the bulletin adds that "most passengers' explanations for carrying the suspicious items were questionable, and some investigations are still ongoing."

What I want to know is, what possible reason would someone have to tape a cell phone charger to a block of cheese?? I hope they at a minimm add these people to the no-fly list!