The caretaker stirred when he heard the crunch of tires on gravel. There was barely any light left in the sky, and he had just made coffee and was reluctant to get up. But his curiosity got the better of him. Visitors to Alexandria seldom ventured into the cemetery at Ivy Hill; the historic town on the Potomac had a brace of other, more colorful attractions and amusements to offer the living. As for the locals, not many came out on a weekday; fewer still on a late afternoon when the April rains lashed the sky. Peering through his gatehouse window, the caretaker saw a man get out of an ordinary-looking sedan. Government?
