Friday on the NewsHour, the Trump administration announces new sanctions against Russia while simultaneously proposing new tariffs on Chinese imports. Also: Investigating the Trump business, inside the intricate bureaucracy of ISIS, Mark Shields and Reihan Salam on the week's news and Harry Belafonte remembers Martin Luther King Jr.

Tuesday on the NewsHour, Facebook CEO Mark Zuckerberg testifies before senators amid serious privacy concerns for millions of users. Also: The latest on the FBI raid of President Trump's lawyer's office and residence, how one school district is taking measures to secure students and chronicling the human toll of the Syrian civil war.