[MadMax, the Grinning Reaper]

Too many “believes” and disinformation about Blackwater who “reportedly” never lost a person they were escorting/protecting. Two can play this game!

[Ultra Sonic 007]

For what it's worth (and your mileage may vary on their veracity), there were allegations reported on at the time that Blackwater did in fact engage in offensive operations, and that their assignments were not purely defensive.

Just thinking in terms of probability (especially given their proximity to the conflict and the usefulness of having a private entity take on missions which did not fall under the oversight of the military chain of command), about the nature of "legal accountability" and how far it can be stretched (since the US military does indeed have a lot impunity in how it's conducted its affairs in various foreign operations over the past few decades), and the willingness of our government to lie to American citizens if it believes the cost is worth it...I would not be surprised in the least if the allegations that Blackwater committed offensive operations were true.

Will we find out for sure? Probably not until everyone involved is old or long dead.