Hundreds of thousands protest in Iran as government forces mobilize to stop the demonstrations. Human rights activists say more than 500 people have been killed in the last two weeks. The head of the Iranian parliament issued a new warning to the U.S., vowing to strike back if the Trump administration takes military action inside Iran. NBC News' Raf Sanchez reports.
The San Francisco 49ers come from behind twice in the final quarter to knock out defending champions Philadelphia as a thrilling NFL play-off series continues.
