Interesting piece of news. Reuters reports that: "An Iraqi national wearing wires and concealing a magnet inside his rectum triggered a security scare at Los Angeles International Airport on Tuesday but officials said he posed no apparent threat. A police bomb squad was called to examine what was deemed a suspicious item found during a body cavity search of the man. Local media reports said a magnet was found in his rectum. "He was secreting these items in a body cavity and that was a great concern because there were also some electric wires associated with that body cavity," Larry Fetters, security director for the Transportation Security Administration at the airport, told reporters. ... 'There never was a threat,' Fetter said."
Just two posts ago, in "Lifestyle Control", it was noted that mini-grenades can fit in body cavities. Here's the source article describing how a V40 grenade was found in a Central American prisoner's rectum.
Guards at the San Francisco Gotera prison outside the capital San Salvador found the V40 grenade, about the size of a golf ball, lodged up the man's rectum during a security clampdown, a prison spokesman said on Thursday. They also caught another 16 inmates who each swallowed a mobile phone. ... Last year, prison guards found an M67 grenade in the vagina of a female visitor at the overcrowded La Esperanza-Mariona prison on the northern fringes of San Salvador.
Here's an accompanying illustration from Pajamas Media.