Do you want to compare Captain Atom with Uncle Sam? Discover the powers, weakness & weapons of Captain Atom and Uncle Sam from Captain Atom Biography and Uncle Sam Biography. Find out all about Captain Atom and Uncle Sam.# Check out how is Captain Atom unique and distinct from Uncle Sam. Discover their love interest, sidekicks, family tree and the movies and games list in which Captain Atom and Uncle Sam have appeared. Find out everything about them here!