The Irish Echo reports comments from then-US Special Envoy to Northern Ireland, Mitchell Reiss, on the Wikileaked US Embassy cables from 2005. From the Irish Echo report
“I believe the taoiseach believed what he told me,” recalled Reiss in the interview.
“This was the taoiseach speaking. The cable doesn’t give you my opinion. I certainly had no evidence whether these men were complicit or not.
“Governments often have information about illegal activities that they decide not to prosecute for a variety of reasons. Many is the time you have certain individuals who are in a peace process, therefore you decide not to pursue these issues. It could be, in some cases, that they’re actually on the payroll as we know some senior IRA people were. There’s no evidence that Adams or McGuinness was, but we know that others were,” Reiss said. [added emphasis]