Read other letters about this article
Imagine, if you will, a dedicated extremist from the distaff side, willing to undergo breast implant surgery, then to die rather gruesomely.
In mid-flight she visits the restroom, and goes to work. Each of her implants is filled with a liquid explosive component, and getting at them would be incredibly gory, but wouldn't faze someone intent on being dead shortly anyway.
Sure, there are technical details to smooth out, but the basic premise could work ... so consider it your patriotic duty to keep a close eye on large chested women next time you fly.