Just came back from LAX yesterday. The priority line ridiculously slow! They now have a Family/Medication queue for security screening, and this line merges with the priority line! Yes, 2 lines merged into one security checkpoint.(Compare to the regular queue split into 2 security checkpoints.) That is, a whole family(2 adults with kid(s)) will merges with every priority passenger, plus they have extra diaper bags, strollers to screen.