One of the major failings that resulted in the successful attacks on 9/11 was a lack of information sharing by key government agencies responsible for homeland security. As a result the government underwent a large-scale reorganization and policy change to ensure such a failure would not occur again. How effective do you think those efforts have been a decade later, considering that our government had been warned about the man responsible for the explosive attack on the airliner on December 25, 2009?