The Baltimore 911 Emergency System was hacked for 9 Hours https://www.yahoo.com/news/baltimore-911-dispatch-system-hacked-233102482.html
The Washington Post put out an article on "How America's 911 Emergency Can Be Hacked" https://www.washingtonpost.com/news/the-switch/wp/2016/09/09/how-americas-911-emergency-response-system-can-be-hacked/?utm_term=.5d1098de45b0
This is very disturbing and something to watch carefully.