So when do we start arresting trees?

Hmmmm.....CO2 is "harmful" to humans, according to the EPA. Doesn't that make plants some sort of evil genius slave masters.....getting us stupid humans to develop all of this industrial know-how just to jack up those CO2 levels? But if we reduce the CO2 levels, won't that mean the plants have less of that sweet, sweet drug they crave? Will they then unleash their reign of terror, a-la "The Happening"? I for one say we better lock up all the trees before they spread their mind-destroying suicide-inducing dust around!