Hey kiddo! Have you ever played hide and seek? It's a fun game where one person hides and the others try to find them. But imagine if someone was always watching you and knew where you were hiding all the time! That's kind of like what has been happening in the world of electronic communication.
Since the 1970s, governments and intelligence agencies have been collecting information on people's communications (things like phone calls, emails, and messages) to try and find out if there are any bad people doing bad things. This is called global surveillance.
However, in 2013, a man named Edward Snowden revealed to the world that the United States government, along with other countries, had been secretly collecting massive amounts of data on people's communications without their knowledge or permission. This was a big shock to a lot of people because they didn't know their privacy was being invaded.
Because of this revelation, there were protests and debates about whether or not governments should be allowed to monitor people's communications, and if so, how much they should be allowed to do it.
So, to sum it up, global surveillance disclosures are about how some governments have been secretly watching what people say and do online, and how people are discussing whether or not this is right or wrong.