He was the "star witness" for the Sandinistas, testifying in the World Court against the United States in 1984 saying (among other things):
"I do not believe that there is Nicaraguan government involvement or use of Nicaraguan territory in any significant way for the supply of arms or other war materiel."MacMichael was also a source for Patti Davis' book, Deadfall, about U.S. involvement in Nicaragua, along with other notable contributors: actor Mike Farrell; screenwriter David Seltzer; Hollywood producer and veteran cinematographer Haskell Wexler; and Eric Hamburg, a former legislative aide to Sen. John Kerry
Interesting--Farrell, who is with Human Rights Watch, was linked to the MoveOn.org affiliate Win Without War and Joseph Wilson's efforts there, as Wilson mentions in his book.