Al Qaeda, Iran, North Korea -- and Global Warming Democrats assess the threats to U.S. national security. By Byron York What a difference an election makes. Today the House of Representatives will debate whether global warming is so serious a threat to American national security that the Director of National Intelligence, normally busy with issues like al Qaeda, Iranian nuclear research, and North Korean missiles, should be ordered to put aside other projects to create a special National Intelligence Estimate on climate change. So far, majority Democrats have pushed the proposal through the House Intelligence Committee — on a party-line...