I don't think this is about the Decepticons looking for something... I think it's something they wanted to hide.
Read more Simmons QuotesFrom: Transformers: Dark of the Moon (2011)
Nothing like driving in a Maybach, huh? Germans know how to make cars, let me tell you.
Simmons : We've go to beak this case down. What we have here, is an astronaut epidemic.Simmons : MIA, dead, died in a car accident, killed, DOA, car death... it's like these guys can't drive, they can fly into outer space but they can't drive a car.
Que : Ah, good, you're here. My name's Que. I do hope you have answers for him. I've never seen him so upset!Lennox : Optimus, you remember Charlotte Mearing, our director of National Intelligence?Dino : He's in a bad mood. He's not talking to anybody today.Charlotte Mearing : What is this, the silent treatment?Ironhide : We've seen that and this is not that.Que : Definitely not!Ironhide : This is worse. Prime, make something of yourself!Ironhide : He's pissed.Optimus Prime : You lied to us! Everything humans know of our planet we were told had all been shared!Optimus Prime : So why was this found in human possession?