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