Some background from the Washington Post:
Ventura sued the federal government in January, alleging that airport scans and pat-downs amounted to unreasonable search and seizure. A district judge in St. Paul threw out his lawsuit Thursday, ruling it should have been filed in a Circuit Court of Appeals.Asked to comment on the case, SecFear Malcolm P. Stag III said, "We regard Gov. Ventura as a possible terror suspect just like any other American citizen. Because he's neither a member of the club nor a corporation, he lacks standing in our courts."
Ventura has said a titanium hip implanted in him in 2008 sets off metal detectors and that agents previously used hand-held wands to scan his body. He said he was subjected to a body pat-down after an airport metal detector went off last November. Ventura said he hasn’t flown since and won’t fly commercially again.