Killer T cells surround a cancer cell. (National Institutes of Health) At a Glance The test can distinguish between DNA from cancer cells and DNA from healthy cells.It was up to 90 percent accurate in tests of 200 samples.The test has detected four types of cancer, but researchers expect it to work for any form of the disease. Researchers from the University of Queensland have developed an inexpensive test that can detect traces of cancer in the bloodstream in as...

At a Glance The proposal would roll back which waters are protected under the Clean Water Act.President Trump campaigned on a promise to remove the Obama-era rules. Environmentalists say the changes could endanger the country's drinking water. The Environmental Protection Agency on Tuesday unveiled a plan to withdraw federal protections for thousands of waterways and wetlands. The plan would fulfillone of President Donald Trump's central campaign promises to roll back restrictions put on farming and other projects near streams and...

At a Glance Madison was there waiting when his owner was allowed back to check on her burned property in Paradise this week.An animal rescuer first spotted the male Anatolian shepherd several days after the fire broke out on Nov. 8.The rescuer left food and water for the skittish dog until the owners could return home. A dog that survived the catastrophic Camp Firein Northern California reportedly waited at the ruins of its property for nearly a month until its...