[outages] NHTSA.GOV not resolving

[Mark Milhollan]

NHTSA.GOV isn't resolving via the usual public DNS providers, e.g., 
Cloudflare, Google or Quad9, -- fail with SERVFAIL -- so it is probably 
a DNSSEC issue as some non-validating public resolvers like Neustar and 
Yandex are working.  Anyone else see this?

Just as I was going to send the Verisign Labs DNSSEC analyzer finished 
and reports that all the auths (ednsN.dot.gov) are unknown, so perhaps a 
wider issue.


/mark