BEIJING – As the cannon fire echoed through Tiananmen Square, even before the first set of troops goose-stepped their way through Beijing’s central avenue, the day’s most enduring image unfolded.China’sBEIJING – As the cannon fire echoed through Tiananmen Square, even before the first set of troops goose-stepped their way through Beijing’s central avenue, the day’s most enduring image unfolded.China’s