This is, yet again, another hurdle that law abiding citizens must face. NICS (National INSTANT Criminal Background Check System) is supposed to be instant. The three day window was designed to aid law enforcement in the event of hiccup in the system. This could be caused by someone with the same name and birthdate as a prohibited person. Or a similar name. I don’t believe background checks work anyway, however it is the reality we must deal with. NICS needs to be fixed. Local (county/municipal), state, and federal agencies need to update records of prohibited persons, if not daily, than weekly.