then the desperate search continues this morning for the missing tennessee woman holly bobo. the reward has been tripled. while investigators are helping them in i.d.'ing a suspect. the facebook vigilantes who are now using the social networking site to take down criminals. wanna-be burglars will not like this story. again another story about the power of facebook. >> facebook, it's really taking over. but first vacation plans for millions of americans could be up in the air depending on gas prices. they're at an all-time high with six weeks to go until the peak driving season. >> there's actually plenty of gas to go around. driven up in part by investors who are betting that things will only get worst. jim avila has the story. >> reporter: americans are trying to cut back, in fact in california where the average price is above $4 a gallon, they may be overdoing it. >> what is wrong with your vehicle today? >> i need some gas. >> reporter: they're running out of gas in record numbers. aaa calls for emergency gas service are up 13%.