January 27, 2015 5:15 pm Are CAT Scans Overused? CAT scans give medical professionals detailed pictures of inner workings of your body, but they can also expose you to high doses of radiation. NBC 7’s Consumer Bob reports on whether they’re being overused. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks