If they think it falls into the range of child porn, then by showing the images they themselves become distributors of the pornography. There was a case a while back where a FBI(?) agent was arrested for child pornography, but it was his job to lure in the real pedophiles and he needed the images to do it.

Then your corporation is an idiot. Nothing on the web is private. At the very least, Google retains the rights to those documents. Anyone who puts their trust in corporate documents to a third party application gets everything they deserve.