airports. demanding instead that they be stored in checked luggage. >> elevated intelligence that we're aware of indicates that terrorist groups continue to target commercial aviation and are aggressive in pursuing innovative methods to undertake their attacks to include smuggling of explosive devices and various consumer objects. >> officials have told cnn there was credible and specific intelligence that isis would try to attack aviation assets, and a hint from a top u.s. commander about why the accelerated effort on the ground in syria against the group. >> there's an imperative to get isolation in place around raqqah because our intelligence feeds tell us that there's a significant external operations attacks planning. >> al qaeda's affiliate in yemen, aqap, has been for years actively trying to target