Read again today about colleges and universities being concerned about students (and faculty?) showing up with fake vaccine cards. They should not worry: Besides being a possible crime of fraud, about the only increased risk is to the fakers themselves. Vaccinated people might catch a covid-cold from the unvaxxed, but they could also catch one from vaccinated people. It's the unvaxxed who have much more to lose. At an in-person school and dorm, they are a lot more likely to catch it, and it could be much more serious. If they do go home sick, they might kill their parents or grandparents.

We're flying electric helicopters on Mars yet you can't turn on your clothes dryer in Texas. That's because scientists are in charge of Mars, and Republicans are in charge of Texas.