January 8, 2022 - PBS NewsHour Weekend full episode

On this edition for Saturday, January 8th: Russian troops arrive in Kazakhstan amid the largest unrest there in 30 years as the president cracks down on protesters; NASA's $10 billion Webb space telescope opened its huge, gold-plated 'eye'; and a documentary takes us inside an immigration detention facility at the height of the 2020 COVID-19 pandemic. Hari Sreenivasan anchors from New York.