In 2012, there were roughly 41,000 overdose deaths in the United States. Last year, the number topped 100,000. In 2012, there were 4.7 murders for every 100,000 people. Last year, the rate hit an estimated 6.9, a 47 percent increase. A decade ago, you rarely heard of carjackings. Now, they are through the roof. Shoplifting? Ditto. The nation’s mental health was in steep decline before the pandemic, with a 60 percent increase of major depressive episodes among adolescents between 2007 and 2019. Everything we know about the effects of lockdowns and school closures suggests it’s gotten much worse.