Countermeasures against Terrorism
Actually there is little you can do to stop an terrorist attack unless your working for an armed force or such.
Wearing a bullet proof vest might give you some confidence but not everyone can afford to buy one for 1,200$(US). Anyway the vest will only protect you from the back and front. If a bullet goes to your head you die, if it goes to your groin you won’t last long. Don’t forget that the criminals don’t only use guns, they have many other weapons you must look out for.
-Every human beings have a nervous system and when they are about to something like Suicide Bomb, that system will be going crazy. So if there is a suicide bomber nearby he probably is really really nervy.
-Most bombers will have a briefcase but it can be replaced with a big coat or a huge garment that hides the wires and the device. They would also be sweating because of the heat of the device if they have it on them and be very edgy. Generally they will try to explode in crowded areas and generally they stand out among the crowd.
-Suicide Bombers are very single minded when out to do their mission. They will only focus on one thing and it is what they desire to do. They will often go through people, shove and push them. If you notice other clues and this with them, it probably is a bomber.