The proliferation and misuse of small arms and light weapons is one of the most pressing security threats of the 21st century. From Sudanese refugees hunted by gun-toting militias to air passengers targeted by shoulder-fired missiles, no one is safe from this deadly scourge. Providing a gripping overview of these cheap and easily obtainable weapons, the threat they pose in the wrong hands, and strategies for reining them in, this guide is required listening for anyone wishing to fully understand one of today's key threats to international peace.