Dangerous Assignment - Memory Chain Equation

Steve walks into the Commissioner's office. Ruth says "Well, here he is Commissioner. I have your plane ticket at my desk when you're ready, Steve" Steve says "Okay, Ruth. Well, where am I going this time, Commissioner?" He says "To Munich. Your plane leaves in one hour. You'll be looking for the memory chain". Steve asks "Memory chain? I hope it is no relation to the daisy chain". Commissioner says "Seriously, Steve, this is the toughest proposition we've ever been up against. it's a skillfully organized pipeline through which vital information has been leaking out of this country to Eastern Europe. There are no documents involved. It's all done by a system of runners. Each runner memorizes the information and passes it on to the next one by word of mouth and right now a vital chemical equation is somewhere along that pipeline". Steve asks "Any idea how far along the chain it is by now?"  Commissioner says "Yes, we caught up with the first runner in Lisbon, but two days too late. He'd already passed the message on. We then traced runner number two to Paris, but we were six hours too late there". Steve says "It sounds like we're running a poor second all along the line". Commissioner says "Yes and I'm sending you over there to come in first for a change. We now have reason to believe that the next transfer point is Munich and we have a tip that a woman named Eva Schaefer may be one of the runners. One of our agents is in Munich now, Kurt Allison. Steve get over there, work with him, and do anything you need to keep that equation from getting through. You've got your assignment. Good luck.