INTELLIGENCE SQUARED U.S. features provocative and informative debates on hot-button concerns of the day. Moderated by ABC’s John Donvan, each program includes experts, specialists and passionate advocates on both sides of an issue. Taking the traditional approach of Oxford-style debate, one side proposes and the other side opposes a sharply framed motion, with two to three speakers on each side. After the formal arguments, the debate is thrown open to the floor for questions, triggering an interchange among speakers and audience. The studio audience votes on the motion before and then after hearing the arguments, providing a clear measure of how people have been swayed.