The last few times I visited Washington I noticed a great deal of construction on the Mall. I assumed most of it was stimulus money, funds being spent by the current administration to boost the economy while improving infrastructure. A great deal was happening around the Lincoln Memorial among other places. As it turns out much of the work taking place is the Park Service and Corps of Engineers trying to improve the levees that protect the swampland that is our nation’s capital. A major breach in 1936 caused considerable damage to the Mall area, and a rainstorm in 2006 caused flooding up to three feet in 2006. Unfortunately, the new African American Museum is being laid on the lowest point in the area.This could be a story with major longterm implications.