It's a bird, it's a plane, it's superhero stamps!
Pow! Comicbook heroes aren’t just minting green for Hollywood.
The U.S. Postal Service is looking to tap the zeitgeist, too, using the annual Comic-Con to launch a new line of superhero stamps.
The sheets of 20 spotlight 10 heroes from the DC universe, ranging from the iconic Superman to the lesser-known Plastic Man, and include reproductions of DC comicbook covers.