Tax shelters. Money laundering. Dodging sanctions. Shell companies. Tax havens. These are the loaded phrases associated with the findings of the so-called Panama Papers — documents that were leaked from the Panamanian law firm Mossack Fonseca detailing how the rich and powerful park their assets to avoid scrutiny. Among those named in the year-long probe of millions of documents by the International Consortium of Investigative Journalists: 12 current or former heads of state, including Iceland’s Prime Minister Sigmundur David Gunnlaugsson, who resigned today amid questions of a conflict of interest regarding his holdings. The documents also indicate $2-billion in transactions were secretly shuffled through banks and shadow companies by associates of Russian President Vladimir Putin. Putting money in offshore banks is not necessarily illegal. And there are many legal tax shelters and legitimate reasons to establish a holding company in another country. But ordinary citizens become outraged when their politicians and their close associates are the ones involved.