I don't have to say much about this scene below from Yankee Doodle. It either hits you like it does me or perhaps you're a foreign spy or have eaten too many hotdogs. Well, even spies enjoy a patriotic tune, even tummies recover. Think about it. It's the spies passion for their work that often turns them, when handled properly. (I watch too many movies).
Have a happy and safe Fourth of July. Witness the great Cagney in Yankee Doodle Dandy (a biographical musical film about George M. Cohan) 1942 (3 minutes):