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Now Playing: 4-24-13 Marketplace Tech: Twitter Hacks and Road Trips

Twitter can be hacked. Who cares, if Twitter is for fun. But consider this: Somebody hacked into the Associated Press Twitter account Tuesday and sent a fake tweet about a bogus explosion at the White House. Investors were watching and the Dow fell about about a percent before the tweet was retracted.  Some experts believe the hack started with a tainted email sent to some unsuspecting AP employee. The strategy is called spearfishing and we are all urged to be alert for suspicious email. And, a final check-in with Jamie Kitman, New York editor of Automobile Magazine, as he completes his cross-country roadtrip.