Sheryl Sandberg at MIT commencement: 'It's hard knowing that you let people down'

Sheryl Sandberg hopes future business leaders can learn from Facebook's recent failures.
Speaking at MIT's commencement ceremony Friday, the Facebook COO spoke about the company's recent struggles and encouraged graduates not to make the same "painful" mistakes.
SEE ALSO: Apple just threw some serious shade at Facebook
Though she didn't explicitly mention any of the issues Facebook's grappled with, like privacy and the spread of fake news, she alluded to the social network's role in sowing disco