This is almost quaint compared to what Persistent Surveillance Systems is doing over Baltimore right now. https://www.bizjournals.com/baltimore/news/2020/04/30

This is almost quaint compared to what Persistent Surveillance Systems is doing over Baltimore right now. https://www.bizjournals.com/baltimore/news/2020/04/30/aerial-surveillance-planes-to-begin-flying-over.html https://www.bizjournals.com/baltimore/news/2020/04/30/aerial...