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Transcripts for CNN CNN Newsroom 20131211 18:41:00

Wearing clotheses in loose layers to allow heat to accumulate between the various layers. too tight and it can reduce circulation, make you more prone to frostbite and keep the clothing dry. this is no small task to be out in conditions like this. . so we just put together a quick list of things that people should have, should think about to keep in their vehicle. if they re ever going to be out like this. food obviously. a knife, a flashlight. blankets, pillows. and then a fully charged cell phone. it s that bottom one, wolf, that probably made the biggest difference in today s day and age, having a fully charged cell phone allows people searching for you to possibly zero in on your signal which is in part how they found this family. there are pings that are sort of given off by your cell phone. they were able to geo locate those pings and that helped them get the rescue. good advice, sanjay. life saving potential advice out there. appreciate it very much. another big question tod ....

Wolf Blitzer , Cell Phone , Bottom One , Life Saving Potential Advice , Big Question Today ,