Amendment 5a to the US Constitution

This story started normally:

Three Sentenced to Prison in Microsoft Fraud Case

The trio were involved in a scheme to purchase more than $29 million worth of software that was steeply discounted for academic institutions, and selling it to non-academic entities, in violation of the Microsoft agreement. These convictions were the result of "Operation Cyberstorm," a two-year undercover investigation into software piracy and related crimes by agents from FBI, IRS and REACT Task Force.

Fair enough, but the kicker is the last sentence:

...A fourth defendant, William Glushenko, 66, pled guilty to a charge of misprision of a felony—knowing of a crime and failing to report it—and was given one year probation and 100 hours of community service.

What?! The Fifth Amendment protects people against self-incrimination, but not incriminating others is a crime?

There may well be legitimate extremes like misprision of terrorism, but at first blush this strikes me as inconsistent with a free society.

Oh yeah, I forgot: if you're innocent, you have nothing to fear.