Two massive, back-to-back earthquakes have left thousands dead and many missing or injured in the region of southern Turkey and northern Syria. We learn about the scale of devastation in a region where vulnerable populations are already struggling. And, the US missile that downed a Chinese surveillance balloon Saturday off the South Carolina coast may have taken with it efforts to repair US-China relations. One analyst says the incident might be seen as a “wake-up call” for officials from both sides. Also, Iran’s government plans on pardoning thousands of people held in its prisons since anti-government protests began late last year. But it's not clear exactly who will get released. Plus, a teen inspired this ocean cleanup project.