Is there a nice, cute way to see what R symmetry is? I mean, N=1 SUSY has a global [tex]U(1)_R[/tex] symmetry, which is a charge carried by the supercharges, right? And a spontnaeously broken [tex]U(1)_R[/tex] is a sufficient (but not necessary) condition for broken global SUSY. (Counter-example is O'Raifeartaigh type models with broken SUSY but an intact [tex]U(1)_R[/tex].) Is there anything else that I'm missing, or have I screwed something up?