Giving The BNP Enough Rope

The BBC has provoked controversy by giving the British National Party a platform for the first time on its top political programme, Question Time.
Nick Griffin, the BNP leader, is due to appear in two weeks time although who he will be seated alongside is questionable as MP's from all the parties are still undecided if they will appear on the show with him.
I can understand this, the man is a vile racist and bigot, but my thinking would be to let him spout off in front of millions of viewers. Put him front and centre in the glare of the spotlight with all eyes and ears trained on him and let him say what he thinks. From what we have heard from him so far as he spouts forth from the sidelines, he will hang himself if we give him enough rope.
Not that i think for a minute that he will come on and begin ranting against blacks or Asians, he will be much to wise to fall for that, but it will be impossible for him to keep the true colours of his party hidden during the evening.
It is much to easy to dismiss him as the leader of an extreme party with limited appeal to a small but vocal bunch of ignorant morons. The current thinking is that if they ignore him long enough he will go away but there will always be a small band of like minded souls willing to entertain his ideas.
I say put him on prime time TV and question him about his policy on immigration (pay them to go home), his view on capital punishment (bring it back) and defence (compulsory national service).
Ridicule will damage him and his supporters much more than just pretending he isn't there ever will.