Finally got an official statement/policy from my apartment building's management on this (what they are doing as far as cleaning common areas, etc).
I'm intrigued (and concerned) that despite the mass flight cancellations/airport chaos; I haven't heard of any action (increased cleaning, spacing out of passengers in cars, service cutbacks/total shutdowns, etc) from the passenger rail systems. Amtrak, Metra, CTA El...maybe I just missed it but I'm in the TV news business so I don't think so, unless something happened after I left work today. Has New York shut down their subway system? Lots of commuter rail systems in the Northeast, too.
Jails and prisons are another thing that popped into my head. Dane County sheriff's department announced restrictions on visitors to the county jails; but what about state and federal prisons? Lots of people crowded close together; access is restricted but if the virus gets in it will wreak havoc.