Via NYT:

“It’s disturbing because I don’t know what it means about whether they could look at my own e-mail,” said Oliver Hart, an economics professor. “We need to have a discussion and a better understanding of the policy.”

He and other professors said the searches would prompt him to conduct more business through private e-mail accounts outside of Harvard’s reach.

If one activity is being monitored by the Principal, then the Agent switches to another one. The only problem is that Google looks at the other one.