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