We have a number of mechanisms. First and foremost, we conduct oversight of the operators to make sure that they're living up either to our regulatory framework or to the MOUs that we have in place. We've also established security networks in each of the modes where we ensure that operators have people cleared at the appropriate level, at the secret level, so that we can share any information with them that might become available to us in the event that there is a threat to the system. It allows us in concert with them to raise vigilance as appropriate.
On May 9th, 2013. See this statement in context.