It's fairly normal on British TV for tough exchanges about racism and propriety to occur. People constantly berate others. The process Began when American style journalism came to Europe was copied, developed, molted, and returns to America to shock Americans. A good old debate, interview, is healthy for a democracy.
Piers Morgan is a refreshing change to the American discussion scene where he can be the uninformed outsider, an elephant in a china shop, and still bring about greater understanding. What rattled Toure's cage was the freedom that Piers can exercise, a freedom that Toure still does not enjoy because of peer pressure.
http://www.thedailybeast.com/articles/2012/03/31/piers-morgan-vs-toure-how-the-cnn-host-blew-it.html?obref=obinsite