I do not like fear mongering. However, I do believe that technological advances are outpacing our collective understanding of their implications. There is a dangerous difference between our understanding and what is actually happening. We need to take action now.
The threat I worry about is global interconnectivity. As in, who the hell thinks it is a good idea to connect a car to the Internet? Or a plane? Or an industrial plant that manufactures highly toxic or explosive chemicals? Regardless, organizations are doing just this. They are, knowingly or not, connecting IT assets to the Internet, thinking this will save costs, improve efficiency, or otherwise improve lives. The reality is that we collectively are constructing a web of instability.
The problem of increased span of control has been around for a while. Suicide bombers are one example. The only positive, if one calls it that, is that disastrous events caused by increased span of control have been limited in scope. That is, one major event happens and then people recover and clean up. This is changing now. The second issue leveraging global interconnectivity is deferred action. That is, a malicious act can be scheduled to happen some time in the future. Think of the news stories about hacking events that were not discovered until long after they occurred. Hacker breaks in, steals data, and a year later somebody finds out. Consider this scenario — hackers break into major infrastructure or economic hubs today, and schedule bad things to happen one month from now. A determined malicious actor could do an incredible, and irreversible, amount of damage. If we wait passively, I believe disaster is imminent.