You can’t make this stuff up.
Via Postal Mag:
With the Just Move! stamp issuance the U.S. Postal Service hoped to raise awareness about the importance of physical activity in achieving a healthy lifestyle. However, according to Linns Stamp News, the USPS will be destroying the entire press run after receiving concerns from the President’s Council on Fitness, Sports & Nutrition over alleged “unsafe” acts depicted on three of the stamps (cannonball dive, skateboarding without kneepads and a headstand without a helmet). (There’s also a batter without a batting helmet, a girl balancing on a slippery rock, and a soccer player without kneepads or shin pads.)