A group of people participate in a trust-fall exercise. 
A group of people participate in a trust-fall exercise.  - 
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Okay, this is kind of sad.

Turns out nobody in this country trusts anybody anymore. 

A study out in the journal "Psychological Sciencetoday shows that back in the early '70s 46 percent of American adults agreed that most people can be trusted. Only 33 percent agree with that statement now.

It gets worse.

They asked 12th graders the same question in the late '70s. 32 percent agreed that most people can be trusted.

Now? Just 18 percent.

Follow Kai Ryssdal at @kairyssdal