cyber defense of critical infrastructure

The US Cybersecurity and Infrastructure Security Agency was set up in 2018 to help protect America's critical infrastructure. It might sound like a technical term, but CISA chief Jen Easterly explains that critical infrastructure is how we get water, power, gas — even food at the grocery store. "In cybersecurity, the federal government is just a partner ... so we all have to work together to drive down risk to the nation," Jen Easterly tells Ian Bremmer on GZERO World.