Talking to American friends, I always sense a kind of despair that the gun lobby is too powerful to challenge and that nothing will ever change. The same resignation was evident in President Obama's rather lifeless reaction to the Washington shooting last week. There is absolutely nothing he can do, which underscores the fact that America is in a jam and that international pressure may be one way of reducing the slaughter over the next generation. This has reached the point where it has ceased to be a domestic issue. The world cannot stand idly by.