For some time, the US has been alleging that Cuba is interfering deliberately with transmissions from the United States to Iran.
This brought a vituperative comment from the Cuban Foreign Ministry, saying We reject this new campaign of defamation against Cuba. Cuba has never engaged in, neither does it engage in carrying out this type of disruption of US satellite television broadcasts.
Cuba, by its own right, has interfered, interferes and it will only continue interfering with the illegal radio and television broadcasts that the US Government airs against our country. We are entitled to do so by our sovereign right to defend our radio-electronic space from the subversive radio and television aggression that, violating international law, the US Government has been carrying out since the first years of the Revolution.
The affair has since become somewhat more friendly, with an exchange of diplomatic notes, with the US offering technical chapter and verse, and Cuba promising to investigate.