People who have nothing better to do in their lives.
…male bombers would have the explosive secreted near their appendix or in their buttocks, while females would have the material placed inside their breasts in the same way as figure-enhancing implants.
Contents: PETN (Pentaerythritol Tetranitrate) surgically implanted.
Detonater: Injection of TATP (Triacetone Triperoxide) by syringe.
They will pretend they are injecting themselves with medication.
Idle hands are the workplace of the devil.