No they don't and yes they do! Both!! Both answers come from the same speech by President Barack Obama:
This just about sums it up. And yes, this is what he said.
And do you notice? The background checks he says won't work are based on information from our own country, and the background checks he claims will work are based entirely on information from places with no functioning government to collect and report it. I guess President Obama et al. put their faith in Middle East "information" but not in our own country & system and the data they produce.