Duma shook his head, "No, I did not lock the Gates. To do so would cause so many problems on Earth. Lucifer did it when he left - locked the gates and expelled every soul and every demon residing there. They had no place to go but Earth." And Dean knew enough about all of this that he could likely just imagine the issues that would cause.
The angel sipped from his soda can again, almost daintily because the fizz was so strange. Still, it was enjoyable and it made him smile, despite the subject matter being somewhat dark. "Having it here with me simply means Remiel will not be able to overtake anything."