Domestic extremist groups adapting online despite social media crackdowns
Social media giants like Facebook and Twitter are cracking down on far-right extremists and other violent groups after the assault on the U.S. Capitol earlier this month. But many of those groups are finding ways to adapt their online presence using encrypted apps. CBSN's Lana Zak spoke with Michael Daniel, the CEO of Cyber Threat Alliance, about the danger this poses to national security.
U.S. works to get more COVID-19 vaccine doses amid concerns over new variant
There's a nationwide scramble to get more doses of the coronavirus vaccine as new cases continue to rise. Nearly 20 million Americans have received at least one vaccine shot. But states are reporting shortages in their supply, amid growing concerns over a new, more contagious variant of the virus. CBS News correspondent Tom Hanson reports on the latest on the pandemic and Dr. Craig Spencer, director of Global Health in Emergency Medicine at Columbia University Medical Center, joins CBSN's Lana Zak to discuss the nation's response to the health crisis.