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.
When news of the mass murder of Europe's Jews began reaching the United States in 1941-1942, the Hearst newspaper chain gave it prominent coverage - by contrast with newspapers such as The New York Times, which routinely confined it to the back pages (as Prof. Laurel Leff documented in her definitive study, Buried by 'The Times').