In testimony before the House of Representatives Subcommittee on National Security and Foreign Affairs, Carnegie's George Perkovich says that the international community must adopt and enforce three new, stronger rules: 1) Limits on the spread of fissile material production capabilities to states that do not now possess them; 2) Clearer delineation of states not in compliance with their safeguards and/or NPT obligations may not withdraw from the NPT without penalty; and 3) Agreement that states will provide nuclear cooperation to others only if the recipient is implementing the IAEA additional protocol.