Very few details, but, coming in the wake of the Times Square attack, I have my doubts about coincidence:
Small Luggage Explosion at Bush Airport
A small explosion occurred in a piece of luggage at Bush Intercontinental Airport, according to officials. No injuries were reported.
Smoke was seen coming from the luggage shortly after it was unloaded off a jet around 2:15 p.m. Tuesday, according to the Houston Airport System. The jet had just landed at the airport from Amsterdam.
Ground crews said they noticed something strange about a blue suitcase and were working to remove it when they heard a “pop” and smoke came pouring from it, according to an airport spokeswoman.
While no injuries were reported, several agencies, including the Houston Fire Department, were called to the scene.
(via The Jawa Report)
UPDATE: Turns out the initial reports of an explosion were wrong, or, at least, it wasn’t that kind of explosion. Whew.