Alan Gross, the American contractor freed after five years of detention in Cuba, is taking a lawsuit against the federal government to the U.S. Supreme Court. Gross wants the high court to review whether the government can be held responsible for injuries he and his wife claimed they suffered while he was detained in Cuba.

In a petition filed with the high court on Feb. 12, Gross and his wife Judith argued that a federal appeals court in Washington was wrong to find that the federal government was immune against all of the Gross’ claims, including economic losses in the United States and Judith Gross’ emotional distress. The appeals court found that those injuries stemmed from Gross’ incarceration in Cuba, triggering immunity for the feds.