The leaks about the US National Security Agency's secret surveillance program have created an uproar around the world, with some countries demanding an explanation, and others calling it a breach of trust. But US Secretary of State John Kerry says that the surveillance activities in question are not unusual for many nations. This week's episode of "On the Line" discusses the implications of this program for American diplomacy around the globe. GUESTS: ILAN BERMAN: Vice President, American Foreign Policy Council, Washington DC. DAVID LIVINGSTONE: Associate Fellow, International Security, Chatham House, London.