Here is the actual video footage. You'll see this propagated through TONS of creationist websites.
TalkOrigins.org has already debunked this nonsense in a variety of ways. Here's the key information:
- According to Dawkins, he paused because the question revealed that the interviewers were creationists, that he had been duped about their motives. He paused to think about how to handle them, and the change of subject occurred due to the several minutes when he confronted them being omitted from the video (Dawkins 2003).
- The question is equivalent to asking how complexity could evolve, which Dawkins has covered in at least four books (The Blind Watchmaker, River Out of Eden, Climbing Mount Improbable, and A Devil's Chaplain). He has answered the question at great length.
- The ability of a single person to answer a question is largely irrelevant. The scientific literature is rife with examples of information increasing.
Unfortunately, the original citation to point number 1 on the TalkOrigins site has been assigned a new URL. Here it is.
Let me explain the significance of this link: Richard Dawkins has provided an answer about increasing information in the genome. I won't restate his whole article, because you really should read it yourself.
But to be clear: Richard Dawkins has ANSWERED how information can be added to the genome.