[MARCH 10--Correction. Duh, of course: The plane in the Christmas Day incident was an A330, not a 747.]
The subsequent TSA hysteria aside, the Christmas Day underpants bomber likely would have failed to bring down that 747 approaching Detroit even if his bomb had successfully exploded, the BBC found in an explosives test conducted for a TV documentary.
In the test, which replicated the incident on Flight 253 from Amsterdam to Detroit, the controlled blast did not rupture the plane's fuselage. The casualties probably would have been limited to the bomber and the passenger next to him, the BBC said.