Consider that an order. This is a Public Service Announcement:
"Colorectal cancer screening helps people stay well and save lives. Regular colorectal cancer testing is one of the most powerful weapons for preventing colorectal cancer. Removing polyps prevents colorectal cancer from ever starting. And cancers found in an early stage are more easily treated. Nine out of 10 people whose colon cancer is discovered early will be alive 5 years later. And many will live a normal life span. But too often people don't get these tests. Then the cancer can grow and spread without being noticed, like a silent invader. In many cases, by the time people have any symptoms the cancer is very advanced and very hard to treat."
-- American Cancer Society
After the jump, what the PSA above doesn't tell you about colonoscopy.