Ok that sounds great I'll be sure to join in.
I think gun controll would be a hot topic or maybe abortion (Although the last one might get a little heated).
I am looking forward to your next debate.
Also in the country I live in (holland) we have a politician running for the election (geert wilders) and he started a heated debate over here.
He was holding a contest that had the participants draw a picture of the prophet mohammed (like charlie hebdo did) and it led to heated arguments from both sides (also a lot of death threats).
this debate was between people who were pro freedom of speech and people who think you can't insult people.
this might be an interesting debate too since it gets heated easily and concerns everyone.