Mr. Chair, essentially the answer falls into two areas.
When a requirement is identified, there's an assessment carried out, and a contract clause is put forward. In order for the successful bidder to be able to get the contract, he or she or the company has to be able to meet the security requirements. That is a requirement. In some cases we do, at the request of certain companies, provide for pre-clearances. That doesn't happen in the majority of cases, but it does happen. Therefore, a potential bidder, on a contract yet to come related to certain security requirements, may say that it's probably a good thing for them to get some clearances, approaches, or industrial securities program, and ask for a clearance. Frankly, we say there's a potential for that company to be a bidder down the road, and we will carry out a process.