Dishonor Code: What Happens When Cheating Becomes the Norm?

When it was time for Sam Beyda, then a freshman at Columbia University, to take his Calculus I midterm, the professor told students they had 90 minutes. 

But the exam would be administered online. And even though every student was expected to take it alone, in their dorms or apartments or at the library, it wouldn’t be proctored. And they had 24 hours to…