Somebody hacked a public billboard.  Any connected thing is capable of being hacked.  The Internet of Things is a growing universe of things to be hacked.  What happens when the most routine aspects of our day can grow out of control.  How do you grab control of a billboard? Signage and video everywhere has the potential to be a public embarrassment/a public statement.  What will our response be: the terrorist response and the application of overwhelming force including more burdensome laws and regulations or censorship of public signage or ever more draconian security measures or what?