John Carlson is a Counselor to the Nuclear Threat Initiative (NTI), Washington, a member of the Asia-Pacific Leadership Network on Nuclear Non-Proliferation and Disarmament, and a Nonresident Fellow of Lowy Institute. He was previously Director General of the Australian Safeguards and Non-Proliferation Office 1989-2010. Concurrent appointments included Chairman of the IAEA’s Standing Advisory Group on Safeguards Implementation (SAGSI) 2001-06, founding Chair of the Asia-Pacific Safeguards Network 2009-12, and Australia’s Sherpa to the first Nuclear Security Summit in Washington in 2010.