>> good evening. i'm dr. sanjay gupta. over the next hour we'd like to introduce to you some remarkable people. they saw a need and stepped up and are truly make a difference. 11 cnn and hln anchors fanned out across the united states to meet them and spend some time with those whose lives they've changed. i'm also going to take to a place that has special meaning to me, to meet someone i consider a true champion for change. let's start with my colleague and friend anderson cooper. you've probably never heard of spike's k-9 fund. it's a very small organization with a very big goal to protect the lives of police dogs nationwide buying them bullet-proof vests. anderson's going to join me in just a moment, but first he'd like you to meet a man named jimmy hatch. >> she's fast. >> she's an athlete, man. >> i first met jimmy two years ago when i interviewed him for a story. he served in the navy for almost 26 years. most of it as part of a special