https://www.dailycamera.com/2021/04/08/police-evacuating-downtown-boulder-following-reported-bomb-threats/
https://twitter.com/boulderpolice/status/1380205705404297218
A Mandatory Shelter In Place Order has been issued for the area(s) of area surrounding the Pearl Street Mall due to a Bomb Threat. Take the following protective actions immediately: if inside shelter in place, all pedestrians outside evacuate the area immediately.