It's a scam. Received call from Utah # 202-313-3974 and was told I had been chosen to receive a US Government grant for $7000. Answered some questions and was told to call 202-738-1691 to get the grant. I called that number and was told in order to receive the grant that I needed to send them a $200 security deposit via Western Union or thru a MoneyPak voucher available at Walgreens, CVS, 7-11, etc.
Naturally I didn't send them any money. I told "Cynthia" (who had an Indian accent and therefore most likely a Buddist background) that she was totally screwing her Karma by stealing good people's money and that her Karma would pay her back. Then we politely said goodbye to each other and hung up.