Suicide bomber tactic is global

If your attacker is planning on suicide whilst undertaking his plan, this very difficult to detect and combat. Soft targets are very appealing for suicide bombs/vests.

http://mobile.nytimes.com/2016/02/02/world/africa/brutal-boko-haram-raid-in-nigeria-kills-as-many-as-100.html?_r=0&referer=https://www.google.com.au/