I can't often talk about the research I do at Lincoln Laboratory, but sometimes the curtain parts for a brief instant and allows a quick peek:

Four innovative technologies garner 2012 R&D 100 Awards for MIT Lincoln Laboratory

And while I'm at it, let me reiterate the fact that we're looking for more great people to come help solve important cryptographic problems:

That's just a sample. Many, many more positions here. (Hint: search for jobs associated with Groups 06-61, 06-68 and 06-69.)