CLEVELAND (CBSNewYork/AP) — Police arrested 17 people Wednesday after a melee broke out during a flag-burning in the streets outside the Republican National Convention.(snip)Among those arrested was Gregory “Joey” Johnson, whose torching of the flag at a GOP convention three decades ago led to the landmark 1989 U.S. Supreme Court decision that said flag-burning is speech protected by the First Amendment.Moments after the flag was set on fire, officers charged in to put it out with an extinguishing spray that some in the crowd thought was pepper spray because of similarities in the design of the canisters and the eye...