>> tucker: last >> tucker: last week in an exclusive investigation for this program fox's hillary vaughn showed how the tsa allowed a major security loophole to exist at major airports. food catering trucks enter and leave airports without facing proper to securities screening, it's an obvious problem one that could be exploited by terrorists. now we are happy to report our investigation has an effect. >> we just learned the tsa sent out an internal memo this week following a report exposing the food truck loophole telling its inspectors changes need to be made to the food truck screening process. last week we gave you a trove of internal documents that show catering trucks roll through our airport gates unchecked by tsa, instead they farm out security