Paul McCartney lent his voice to the gun control proponents this week. The former Beatle joined singer Tony Bennett's "Voices Against Violence" campaign which allows Americans supporter tougher new regulations on the gun control issue to text a number to receive contact information for their local legislator. McCartney, a British citizen, is the latest celebrity to join Bennett's push for harsher gun control regulations. Gloria Estefan, Alec Baldwin, Rosie O'Donnell and Josh Groban are some of the other voices callers will hear in addition to Paul McCartney's plea that nobody has to "Live and Let Die" in his view. "Tell...