Negotiators from the 193 UN member-states are in New York to try and hammer out a treaty to regulate the global weapons market. This would be the first-ever binding treaty to regulate a market valued at more than 70 billion euros a year. Arms control campaigners say one person every minute dies as a result of armed violence around the world and that a convention is needed to prevent illicitly traded guns from pouring into conflict zones and fuelling wars. Analyst Paul Rogersnd looks at the pitfalls in drafting such a treaty.