I wish everyone would shut up about "not being able to live their lives". Especially Claire. What is so different about her? She's basically normal as long as she's not injured. Which you know happens publicly to everyone on a daily basis, right? Their trying to do the X-Men discrimination thing, but it's falling apart. The reason it worked in X-Men was that people openly knew about muties.
Well, when Claire was loosing her ability to feel pain, and thought she'd stop being able to feel anything at all, it made sense for her to worry about her power. With that crisis over, it's not her power causing troubles, it's other people with powers trying to screw with her that's the issue. Maybe in 40 years or so, when everyone around her is starting to wrinkle and gray, and she still looks twenty-something, then she can start agonizing about her power again.
You're right about the discrimination thing. Especially since I'm not sure we've seen a single person on heroes who can't hide their power as long as they can learn to control it (Except the self-mutated Mohinder, I just remembered). None of them look like a freak. No one has wings, fur, scales, cat eyes or anything else that would make it hard for them to blend-in. The whole fear of discovery hinges on one thing, controlling powers, and that shtick is already getting old.