Guys we talk about sharing such trivial details while some of these fanatic guys are PHD holders, engineers, trained pilots etc etc ..While we Indians just blame political parties, intelligence agencies, police & waste time in "postmortem", they think ahead of time & plant the slippers in such a way that even we can't notice bomb planted nearby our vicinity. Need is to be cautious, alert & help police nab the suspect & for police, intel agencies, need is to gather more n more intelligence.