Videos show speed , used by terrorists in Paris attack , Mark Hertling says . In the next few hours and days , other countries of Europe -- especially Germany and Italy -- will be interested in sharing information from this attack , as they face similar threats from Muslim extremists . Attack 's timing indicates intelligence and strategic planning on part of terror team , Hertling says . He calls it a follow - on attack after earlier attacks on Charlie Hebdo laboratories .
Videos show speed , used by terrorists in Paris attack , Mark Hertling says . Attack 's timing indicates intelligence and strategic planning on part of terror team , Hertling says . He calls it a follow - on attack after earlier attacks on Charlie Hebdo laboratories .