what does don’t x the line do ?

https://soundcloud.com/dxtl/4-03-2013-150-million-continued

“Mal talks about the campaign explaining what happens when a volunteer for the don’t x the line campaign goes out each Saturday,and Sunday,at junior leagues,and how they report an incident if it needs to be recorded. Also GRR 121, interviews Kenny Saunders regarding save grassroots football.Do you support it. ?