Stephen challenges the audience with another "What Number is Stephen Thinking Of?" segment; talks with Ken Roth, executive director of Human Rights Watch while celebrating the 5th Anniversary of Guantanamo Bay; gives a "Tip of the Hat/Wag of the Finger" to Apple for changing their name to Apple, Inc. and introducing the iPhone, giving the first ever double finger wag; talks to Judy Woodruff about "Generation Next."