background checks are an indicator and gun sales since there isn't a federal firearm registry. rob: foxbusiness letters, walmart cracking down on the opioid epidemic. jillian: the prescription policies that are now in place. >> reporter: walmart making it tougher to get these prescriptions. they have a new duration of time they are prescribing these drugs requiring they be filed electronically so they are limiting that to 7 days. they are cracking down on limiting the dosage this applies to sam's club. those locations will be affected as well. i went to show you a statistic, people who were prescribed one day of opioid had a 6% chance of being addicted a year later but for those prescribed 8 or more days, double to 13.5%. jillian: happy birthday to the