President Donald Trump hopes local police can help federal immigration agents arrest and detain people in this country illegally. But one Colorado county says they tried that before and there were challenges. Then, a new film, "Beyond Standing Rock," tells of other tribes in the West that have struggled with sovereignty over their land and resources. And, our space expert talks about the discovery of seven earth-like planets which NASA calls a major leap forward in answering the question "Are we alone out there?" Plus, about 75 people across Colorado work in remote areas tending to the state’s water supply.