CNN's Bergen: If ISIS-K Did Russia Concert Attack, It's 'Very Embarrassing' for Biden on Afghanistan Withdrawal

On Friday's broadcast of CNN's "AC360," CNN National Security Analyst Peter Bergen stated that if ISIS-K's claim of responsibility for the attack on a Russian concert hall is accurate, "that would be very embarrassing for the Biden administration if it turned out that ISIS-K has sort of re-grouped to the extent that they can reach out to other countries [and] carry out major attacks" when the Biden administration is "responsible" for pulling troops from Afghanistan.