. >> steve shabinski of the f.b.i. testified last fall that f.b.i. was looking into terrorist groups like al-qaida who are interested in obtaining these tools. how worried are you about that possibility and that threat now? how good have they gotten at hacking? >> i'm very worried about the full spectrum. i mean, obviously we have to be most concerned about people who want to get access to the most valuable information or might want to cause the highest degree of harm. so we've got to pay a lot of attention to that. >> how much of a threat is al-qaida today in that sense? >> i think they are developing capabilities across the board. certainly the threat level i think of actors across the board is increasing. we've just got to keep an eye on it. >> ok. mr. ridinger, you talked a little bit about stove pipes. has that decreased over the last couple of years? is more information being shared? or has d.h.s. been integrated more into the whole system? >> the level of stove pipes are certainly decreasing. it remains true that information sharing is hard. b