I got a phone call at work from these people using a Omaha, Nebraska area code. My co-worker answered the call.  She said she could hear alot of phone trafficking in the background. This guy was foreign speaking, said that he was from a investigation department but would tell her his name. My co-worker told him that she was not available and could she take a message. He said no and said where is she at? My co-worker told him he's not priviledge to private information of airport employee's. He asked for me 3 times during the converstation and  then asked to be transfer to my human resources. My co-worker then asked which division of human resources and the guy started cursing at her and hung up.