The Fusion website posted the name of only nine Americans mentioned in Panama Papers.
The leaked documents from Panamanian law firm Mossack Fonseca has revealed how tax havens are used to hide wealth.
It is the biggest leak in history, but many have questioned why only a few Americans have been involved so far.
US news portal Fusion, part of media group by the International Consortium of Investigative Journalists (ICIJ, for its acronym in English) revealed these documents, published the names of nine Americans mentioned in the papers.
Fusion said journalists were able to identify 211 people in total with addresses in the United States, who own companies listed in the information.
But it was unclear if all these people are American citizens.
Experts say that could meet other names as more documents are examined filtered 11.5 million.
Americans seeking to evade taxes, they said, might have preferred other known tax havens.
Another reason could be that US laws that are stricter, have prevented tax evasion for its citizens.
NO NEED TO GO FAR
The laws in the states of Delaware, Nevada and Wyoming have provided corporations create facade to avoid higher taxes in their own states companies, experts say.
Experts say the state of Delaware, USA ., Is a version of the Cayman Islands
Experts believe that there are foreign companies that have benefited from these regulations.
Critics say that these arrangements were responsible for turning Delaware in a continental version of the Cayman Islands, a known tax haven, according to a report in The New York Times.
Delaware officials said this comparison was "inaccurate".
However, for the NGO Transparency International , that state is "synonymous" of "phantom stock companies and corporations" and is "one of the most symbolic cases of corruption."
It is not only Delaware. Professor Jason Sharman, Griffith University Nathan in Australia, told Reuters in 2011: "Somalia has higher standards than Wyoming and Nevada."
These two states were among the many places where Mossack Fonseca said he offered his services.
Some experts believe that Nevada has more lax tax laws that countries like Somalia, which is virtually a failed state
Last year, the Index Secret Financial, published by the Tax Justice Network (Network for Tax Justice) said a "mistake in enacting laws requiring transparency from private operators" made of the states of Delaware, Nevada and Wyoming, "leaders" in the constitution of offshore secret societies.
William Sharp, of the law firm Sharp PA Partners, based in USA ., Said: "Forming a limited liability company in Nevada or Delaware can be done in the overnight, typically with little or no substantial operation" .
"If Americans seeking corporate confidentiality, Nevada and Delaware can certainly offer it."
Delaware, Nevada and Wyoming have promised to end business secrets, but so far have not taken relevant measures, according to Tax Justice Network.
No one can enter ESOS SECRETS
Tax Justice Network explains that the operation works like this: an entrepreneur opens a shell company in Delaware, for example, using a local agent business creation.
This local agent provides the persons nominated as directors and officers, who are usually lawyers, whose personal data, such as details of their passports, they become public.
But as the nominees are bound by attorney-client not to disclose details about the company, privilege is difficult to get the names of the real owners of the company and these may well be another company facade.
"The company can handle millions through his bank account, but nothing - whether local or foreign laws can penetrate that kind of secrets" , says Tax Justice Network.
They can go to other places
A report of the Political website suggested that Americans who want to evade taxes preferred other places like Bermuda, Cayman Islands and Singapore, but not Panama.
Singapore offers Americans a more "stable" than Panama's political system.
These countries speak English, a derivative operating under English law and political systems have perceived as more stable, the study says.
"If there was a leak of Singapore, as in Panama, which is what we have so far, we could find more" , said Reuven Avi-Yonah Political, law professor at the University of Michigan.
Avi-Yonah, estimates of the annual costs of tax evasion for the United States range from $ 20,000 million to $ 70,000 million.
However, Sharp said US laws such as the Law for Extranejras Accounts Tax Compliance (FATCA, for short) and other transnational initiatives have led to tax evasion games are over, mainly for American taxpayers.
"The list of known countries used by Americans to evade taxes is shrinking , " he said.
