(CNN)The best places to visit in 2020. The new struggles of Pashmina goat herders. A better breast cancer screening. Grab a cup of tea and settle in. Here’s what you might have missed during a busy news week.
As a growing number of states legalize cannabis, officials are sounding the alarm for technology that can quickly determine when drivers are stoned. But it’s not as simple as a breathalyzer — cannabis compounds, notably THC, don’t behave like alcohol does in the body.

















In a moment of fear, determination, pride or defiance, we erect barriers — first emotional and then, often, physical. Then, we have to live with them, around them and through them. We watch them crumble, become tools for others, or just another site in our crowded, frenetic landscape.
As firefighters battle deadly wildfires, a songbird mimicking the sounds of emergency sirens has been caught on video in southeast Australia. Some people are calling it the metaphorical “canary in a coal mine.”
A new study says that using artificial intelligence developed by Google resulted in fewer false positives, where test results suggest cancer is present when it isn’t, and fewer false negatives, where an existing cancer goes undetected.
Pashmina is the softest and most expensive type of cashmere wool in the world. But the ancient way of life for the goats’ herders is now under threat from climate change, fake imports and the lure of an easier and more comfortable life.
Julián Castro has dropped out of the 2020 Democratic race for the White House. But that’s not really the news. The news is what that says about the continued (white) state of US politics.
Read more: https://www.cnn.com/2020/01/03/app-news-section/weekend-reads-january-3/index.html