Terrorist attack

There has been a terrorist attack at the Protronix warehouse today. There were two people and a car who drove up to the Protronix warehouse and threatened Unit 1Aa at the help desk. This is a transmissin we got from 1Aa that day:

Two bipeds arrived at the Protronix warehouse today. They looked like primates, but they may have been rodents. One of them wore translucent facial casing protecting his eyes, while the other carried a recording device- maybe one of our X-47-ps? They did not look like terrorists, although I had a feeling that there was something hiding in the car. The one with facial casing was called 'Mr. X' by the other. The car spoke briefly, then they went away. They said they had come from a planet named 'Earth'. We have never heard of such a thing.

We've looked in the record book for Racnoss and found no one with the surname 'X'.