Your are one of the top agents of the Special Security Agency (SSA). You have just returned from a successfully completed mission in the Far East. It is the first night of a promised and well deserved week of rest and relaxation, when the phone rings - at three in the morning.

It is your boss, "T," as he is known in the department. He wants you to come to Washington right away. Yes, he knows that you are supposed to get a short vacation after each assignment. But this is an emergency.

Wearily you pull yourself out of bed and get dressed. It is still dark outside when you jump into a cab and head for the airport, where you have your own small plane.

Dawn is just breaking over the Atlantic as you enter the landing pattern of a military airport just outside of Washington, D.C. You jog across the field, attache case in hand, to a long dark-blue limousine waiting there for you.

You jump in and the limousine speeds off. T, a somber-looking man of fifty with a square face and a longish nose, is in the backseat.

"Sorry to interrupt your vacation," T says, "but this can't wait."