heightened concerns that isis and al qaeda-affiliated terror groups have perfected their ability to hide bombs in electronic devices. cnn has learned this new intelligence was a significant part of the decision earlier this month to ban laptops, tablets and other electronic devices from the passenger cabins of planes flying directly to the united states from ten middle eastern and north african airports. demanding inste that they be stored in checked luggage. >> elevated intelligence that we're aware of indicates terrorist groups continue to target commercial aviation rand aggressive in pursuing innovative methods to undertake their attacks to include smuggling explosive devices in various consumer objects. >> reporter: officials have told cnn there was credible and specific intelligee that isis would try to attack aviation assets and a hint from a top u.s. commander about why the