What's interesting here is that depending on where the Telescope is in its orbit relative to the Earth, (which means important listening stations all over the world BTW) there is a time factor for how long the message is travelling. It effectively captures the noise coming from Earth and makes a record of what occurred in the past.

Think mirror ? It is a way to catch stuff that is promptly deleted in real time, for example. Of course the military is interested in such a capability.