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