Agents enter dual agency when they represent both the seller and the buyer. Dual agency can happen even if the there are two agents involved -- a listing agent and a buyer's agent -- if both agents work for the same broker. That's because it is the real estate broker who creates agency.
The notion of Jewish control of the United States is utter nonsense. Jews are a capable people who have, through hard-work, gained a disproportionate role in some aspects of American life. But they in no way dominate the country.
In 1811, the charter for the Ashkenazi Rothschild family owned the first Bank of the United States and managed to be in control of the US money supply. This control expired and the US Congress voted against the renewal of the charter. Andrew Jackson, later the 7th President of the US from 1829 to 1837, said: