2004 Hyundai Tiburon Emergency brakes release

My emergency break handle is loose and it feels like there is not resistnace on it. The cable snaped and I had it replaced in a shop, but only a few months later it is doing it again. The rear brakes are disk, and due to the need to pass inspection I just changed them today. While I was examining the calibers I noticed that there wasnot any tention on the e-brake mechinism that the cable attached on either side. So with the break off I would expect to feel tention in the e-brake handle. Do you think the cable has snapped again or the mechinism is sticking? Also after changing the rear brakes the drivers side is scraping.