Big Tech drastically reverses course on coronavirus ad policies

When tech companies roll out new policies, it’s usually after long periods of meticulous internal discussion and review. Big reversals aren't the norm. 
Then Covid-19 hit.
As the looming threat of the coronavirus began hitting the U.S. in February, many tech companies started to roll out new ad policies.  
Google banned most nongovernmental Covid-19 advertising in early February. YouTube followed suit shortly after, demonetizing videos about the coronavirus so its advertisers wou