Patents are an important part of the American economy. They protect creators’ inventions and ideas from being copied. They promote further inventions and everyone benefits. 

But the digital era isn’t as simple. Patent trolls have emerged. They sue anyone for using nearly any obscure form of software or technology. Most of the time, they are just blackmailing people and companies because most don’t have the money to fight back. 

Kirby Ferguson explains the background of the patent troll, and how popular podcaster Adam Carolla is fighting back