There's a difference between what Obama's plans are for the country and what GB is doing... I highly doubt the pointless knife is high on Obama's plan for lowering the rate of violence in America.
It's what we like to call apples and oranges.
I'll admit that this is ridiculous. There's absolutely no point (pardon the pun) in having a pointless knife because slashing a human throat is much more effective as far as killing (fatal wound) goes anyway. But I DO think their hearts are in the right place. Instead of arming everyone to the teeth and seeing how well people live in fear of one another, trying to consciously lower the rate of violence so that people can live without fear of criminals OR their crazy neighbor with the 12 bore.