Creating Fire Breaks News Today

Much needed help. >> reporter: as ominous as these flames look, theyre actually part of a strategy. this is a back-fire that crews set intentionally to take advantage of favorable weather. right now it is burning back toward itself and away from the community. that community is south lake tahoe. when the caldor fire exploded this week, it took direct aim at the mountain resort. more than 22,000 people are evacuated, and all businesses are closed. this tourist community will be empty through at l...