Why don't these fools scream for more budgeting for facilities/screening so more people can be hired? Better training for officials who screen applicants? And a proper revamp to certain things - like legitimate proof (a receipt for example) of gun storage cabinets, etc. - to reduce the chance of an unregistered person/relative getting their hands on a weapon.
Majority of mass shootings in America is due to one of two things.
An unhinged relative got their hands on someone else's gun.
Someone that should NOT have been registered slipping through the cracks due to errors on the application or overworked officials with hundreds to thousands of applicants to process in a week or even in a single day.
.
Very rarely - it happens but it's less common - do you hear of a mass shooting, particularly at schools, coming from someone illegally buying a gun on the streets.