New measures feature additional random checks after passengers make it through security . AQAP 's website says lone wolf attacks that threaten the U.S. , still are a threat . The new issue of AQAP 's Inspire magazine , released on December 24 , featured instructions on how to build what AQAP called a `` hidden bomb '' from easily purchasable materials . Terrorists ' Inspire magazine stated that even if new attacks were detected or failed , they would bring terror to the West . Counterterrorism officials have been concerned about technical instruction provided by Inspire for years .
New measures feature additional random checks after passengers make it through security . AQAP 's website says lone wolf attacks that threaten the U.S. , still are a threat . Terrorists ' Inspire magazine stated that even if new attacks were detected or failed , they would bring terror to the West . Counterterrorism officials have been concerned about technical instruction provided by Inspire for years .