Leland Johnson signs a copy of his book “Situation Desperate: U.S. Army Corps of Engineers Disaster Relief Operations, Origins to 1950”. Johnson is a freelance writer and researcher from Westmoreland, Tenn. The Office of History officially published the book in a ceremony March 23 at U.S. Army Corps of Engineers Headquarters in Washington, D.C. (Photo by John Hoffman, USACE Headquarters)