There was a surprising low number of Americans in those documents, which date back into the 1970s. In 2010 there were significant changes in US law which effect

There was a surprising low number of Americans in those documents, which date back into the 1970s. In 2010 there were significant changes in US law which effectively removed places like Panama papers from happening again moving forward. These are the reasons the poster above you stated the decade limitation. He is correct.