That's certainly plausible, but given everything we hear and know about Google screens its employees, is it indicative of a problem that their contractors pull

That's certainly plausible, but given everything we hear and know about Google screens its employees, is it indicative of a problem that their contractors pull off stuff like this, even if it wasn't condoned by Real Google Employees? If you hold your employees to high standards, why not hold your contractors to the same standards?