▲ On April 4th, Jeffrey Lewis, the Director of the East Asia Nonproliferation Program at the James Martin Center for Nonproliferation Studies at the Monterey Institute of International Studies, made public via his respected blog ‘Arms Control Wonk’ an image of a letter sent by the main North Korean atomic energy authority to the IAEA on March 16th inviting an IAEA delegation to visit North Korea to discuss the implementation of the February 29th ‘Leap Day Agreement’ (© Arms Control Wonk)