As an old phrase says " You will get what you got, if you do what you did". We have never learnt from our past experience. In Dec, 2002, Vile Parle train blast occurred by placing bombs on luggage stand. We did not learn or did not care to learn from that blast. We paid prize on 7/11. Terrorists just placed their bomb on same luggage stand and conveniently escaped. As a common man, I suggest following changes our society should do: 1) Remove the luggage stand on trains and cover the seats of bus and trains completely so that no one can place any thing beneath it. 2) Educate people to observe fellow passengers and check beneath of the seat before he/she sits. 3) Sniffer dogs should be always available at public places as train stations, bus stations, Malls etc. May be we can train our Stray dogs to be sniffer dogs. 4) Seal the airports immidiatly after tregedy. 5) Supply sketches of all possible terrorists to Railway canteen staff, bus conductors, drivers, hotel waiters etc. They can be vital informers since before attack Terrorists do visit targeted areas many times to plan out the attack in detail.