bombings and the deep horizon oil spill. it was preface book and pretwitter and lat tense si involved in sharing the information. i think we all agree right now that crowd sourcing, understanding what s going on in the communication between the public is a very valuable asset when these things happens. thank you so much for giving us some of your time from new orleans today. take care. thank you, luke. up next, gun violence in the social media age. what it means for law enforcement and for us. this is andrea mitchell reports only on msnbc. to folks out there whose diabetic nerve pain.