Sting Video Creator Indicted on Charges of Tampering With Federal Documents

Huh:

A county grand jury here that was investigating allegations of misconduct against Planned Parenthood has instead indicted two anti-abortion activists who made videos of the organization.

In a statement, the Harris County district attorney, Devon Anderson, said Monday that the director of the Center for Medical Progress, David Daleiden, had been indicted on a felony charge of tampering with a governmental record and a misdemeanor count related to purchasing human organs.

....Ms. Anderson said in the statement that grand jurors had cleared Planned Parenthood of any wrongdoing. She did not specify in the statement what record or records were allegedly tampered with.

I wonder what this is all about? There's not enough detail to know if these are serious charges or just a bit of petty harassment.