Political and climate activist Greta Thunberg has been arrested in London for protesting in support of hunger strikers linked to Palestine Action, a group designated as a terrorist organization by the United Kingdom. Read more: https://cnn.it/4jcDHV7 | CNN

Former Republican Sen. Ben Sasse announced Tuesday that he's been diagnosed with stage 4 pancreatic cancer. CNN's Brian Todd reports. Read more: https://cnn.it/4jvULWp | CNN

China is developing a controversial hydropower system in a remote region of the Himalayas. Beijing has been tight-lipped on details of what it has called a "project of the century." CNN's Simone McCarthy breaks down how the plan might take shape. Read more: https://cnn.it/4p8sZ3e | CNN