Missourians might soon be able to tint the back windows of their vehicles as dark as they want. The House has rushed through a bill that would correct mistakes made in a window-tinting bill passed last year. That bill unintentionally threw thousands of vehicles out of compliance, because it inadvertently restricted the darkness of the back windows. Representative Patrick O’Connor of Bridgeton has sponsored a bill that he says will fix the problem and end the angry calls to lawmakers.It also allows the back windows to be as dark as the owner wants and restricts the regulations to the windshield and front two windows. There are medical exemptions included. The bill now moves to the Senate.