It's back up now. Commercial aviation is generally well known for having redundancies in place for a lot of problems they can potentially face, so I have to wo

It's back up now. Commercial aviation is generally well known for having redundancies in place for a lot of problems they can potentially face, so I have to wonder how big the issue was that they had to shut down an entire airspace. Could have been a one-in-a-million glitch they couldn't account for. The subsequent investigation report will be an interesting read.