S. Popov: I put my signature to a few scraps of paper saying that yes, I agreed to be given access to certain classified documents, that I would not disclose those documents' contents, that I agreed to certain constraints on my ability to travel domestically, that, um, I should, so to speak... well I don't even recall what those documents said. And that was followed by other, more important documents, and no one explained what exactly my role would be or what was going to be developed, let's say... there were going to be new types of biological weapon developed. The document said that. No one spoke to me about that. I took a look at that document, realized that I had really gotten myself into a mess, and things were left at that, and the situation continued to play itself out. There was no turning back. There was no chance to say, "Pardon me, excuse me, I really don't feel like doing this." That was it, I read the paper through, I signed it, and then it was time to start thinking about how to deal with the situation going forward. What I mean is, turning around and saying no was not an option.