desperately needed. these are just some of the tens of thousands of americans when need health care but have no insurance or not enough of it, and they re lining up at a free makeshift clinic in los angeles, a short-term solution to a long-term problem. bill whitaker begins our coverage. reporter: people from all around los angeles have been lining up like this around the clock since monday. waiting, hoping to get medical care. follow the line. reporter: free medical care, some 1500 people a day, almost all working people, but it s just not enough, filing into the l.a. forum to see 443 doctors. you can see my finger? reporter: dentists, optometrists, all of these medical professionals volunteers all of these people in need. larry derst s disability check won t cover the glasses he needs. what would do you if this were not here? suffer. reporter: kenya smith needs a checkup for two weekend-old zoe. her insurance doesn t cover it. they wanted $1500 for copayment