KINGSTON, Jamaica -- The bus carrying the U.S. men's soccer team squeezed along narrow, abused roads, past compact shops with hand-written signs and homes packed together like shipping crates. The destination was a scruffy little stadium in Arnett Gardens, a tough neighborhood in central Kingston known to the locals as the "Concrete Jungle."As players spilled onto the rutty field for practice, police with ominous weapons stood guard. Worn billboards and, further in the distance, the Blue Mountains furnished a layered backdrop. Children gathered behind rusted fences and atop adjacent structures to gain view.This is precisely what Coach Juergen Klinsmann wanted.