TED states: Our agenda is to make great ideas accessible and spark conversation.
With a thus stated agenda everything should be on the table. Every idea should be open for discussion regardless if it is offensive to some.
On their Debunking TED myths page they further state : TED has no formal bans on any topic. If you notice we have not covered a topic of interest to you, please suggest a speaker who can do it justice, and feel free to let us know we've been missing out! We are always looking for new ideas, topics and speakers.
With that said, they also admit there are time and budget restrictions on who and what they present so there is a mechanism of control in play. Since the idea is to spark conversation, there is a degree of balance involved.
With those guidelines I submit no topic - if presented well thought, civil manner is unmentionable on TED. Now it might take some serious creativity to make some topics civil but hey - why should everything be easy - right???
That's my take on Ashok's suggested topic. Since he is an attorney I'm rather curious about his take on the subject. And here's a Friday tune for everyone....