 Medical facilities around the world, including in Britain, struggled with computer systems after a global tech outage following a bad CrowdStrike system update. This doctor says... We've not been able to access patient clinical information, so for their medical history, we've not been able to prescribe medications in the normal electronic way. Airports in the U.S. are still battling issues with canceled flight security and check-ins, leaving travelers frustrated and angry. CBS News Brief, I'm Alison Keys.