Medicare will now cover gender reassignment surgery, ending a 33-year ban.

It's a legal victory for transgender people, and the decision means the government recognizes the procedures are medically necessary for those who don't identify with their biological sex. 

It's the latest in a string of cases that have moved the ball forward for transgender rights advocates.

Ilona Turner, legal director at the Transgender Law Center, talks with Alex Cohen for more of the case that prompted the change.