Post-election purge hits cybersecurity

The Cybersecurity and Infrastructure Security Agency, or CISA, was created two years ago within the Department of Homeland Security to shield America’s critical infrastructure from cyberattacks. Last week, CISA’s assistant director was pushed out, and there have been reports that its director expects to be fired. So what does this all mean for that critical infrastructure? Molly speaks with Kim Zetter, a cybersecurity journalist and author.