The deaths of several dozen Soviet reserve soldiers didn't go unnoticed. The Ministry of Defense of USSR received dozens of complaints. The military leadership and the executive investigative branch started a necessary inquiry. Later, certain documents emerged pertaining to the "Radio Sleep" experiments in Novosibirsk, but the most interesting fact was that the experiment was led by KGB without the participation of the Ministry of Defense - which is to say, it was technically carried out behind the backs of the highest military executives.
That fact became a powerful tool in GRU's (Main Intelligence Directorate) and Nikita Khruschev's battle with KGB and its general Ivan Serov, with whom Khruschev had a strained relationship. Rumors even say that Khruschev was genuinely afraid of Serov, but had no legitimate reason to remove Serov from his post. That is, not until the information about "Radio Sleep" emerged.