BOSTON (CBS) – The national health care reform law requires insurance companies to cover 100% of the cost of screening tests for dozens of potentially deadly diseases. But thousands of patients are finding out the hard way that free doesn’t always mean free. When Jim Dungee had his first colonoscopy, doctors found several polyps, which are a precursor to colon cancer. “Therefore, I had to come back in three years,” he said. The three year mark was back in December. Knowing the test could save his life, Jim did not hesitate to make an appointment. He even called his insurance...