Information Retrieval? Good. I could use somebody like you, later. Depending on whether or not SWORD cooperates with me and lets me take a look at the Tesseract.
Are they aliens in disguise? Because I came across an army of Mire whose general posed as Odin to fool a village of Vikings. I can imagine Loki being bad business.
A terrorist-type attack, then. I'll have to ask about that. I wonder if they've kept any bits of the cocoon to analyse. They probably did. But we could hypothetically check the store's air filtration system to see if there's any residue of the gas left.