Pure speculation of course, but if aliens can switch off our Nukes (according to the testimony in the disclosure project), there's probably a good chance they could also switch off HAARP. I fall into the camp of thinking that disclosure has not happened on a large scale because the powers that be dont want people to know how defenseless we really are against beings much more technically advanced than us. Protection or Defense is the government's traditional trump card after all, "you need us to protect you from terrorists, drugs, illiteracy, etc..."