anwar al awlaki and english language jihadi rap videos from somalia's al shabaab. it all start out in afghanistan, when we fight the oppressor straight off the land. >> reporter: this september, the u.s. will commemorate the tenth anniversary of the 9/11 attacks. some experts believe al qaeda may also be watching the calendar. >> i think they are likely to step up their game to be able to have a successful, significant attack prior to the anniversary. >> they believe the terrorist don't want to hear any american officials say they have kept the country safe for ten years, but separate and apart from that, indict versification of the threat and new emphasis on small-scale attacks makes threats harder to detect and created a larger challenge for the intelligence community they braced for a tough year ahead, suzanne? >> thank you, jeanen. most americans know christine o'done for declar --