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.
There are 13.3 million Jews in the world; 6.5 million of them are in North America. Presently some of the largest Jewish communities in the United States include New York City, Boston, Philadelphia, Los Angeles, southern Florida, Washington DC, San Francisco and Chicago.