'It's going to take some time' - US Homeland Security secretary on nationwide ground stop

US Homeland Security Secretary Markwayne Mullin also said that there should be 'no fear' and that 'everyone is safe' when discussing a nationwide air traffic outage. Flights have been grounded across the US due to an air traffic control communications issue. When asked if the issue was caused by AI, he said "you can't rule out at this point".

Read more about the ground stop happening across the United States here.