New test diagnoses pancreatic cancer

Scientists are getting closer to creating an early screening tool for one of the deadliest and most aggressive forms of cancer. Pancreatic cancer is often diagnosed late because it usually doesn't cause symptoms in it's early stages, but researchers at John Hopkins say they've developed a blood test that looks specifically at early stage pancreatic cancer. The test has correctly identified 141 cases out of 221 patients, that's 64-percent. Researchers say more work needs to be done before the test is ready for clinical use.