Quite a debate going on right now between Geraldo Rivera and Joey Vento on WPHT 1210 the Big Talker. You can listen live if you head there. It's on from 1PM-4PM EST today.
It's fireworks so far. I'll have some audio later. We were trying to get tickets to go and cover the event, but it was sold out. Mariann Davies of You Don't Speak For Me is on the panel.
Update
I have the audio up and my take on the debate at my entry "Joey Vento Vs Geraldo Rivera At The Great Immigration Debate In Philadelphia"