Re: And in the course of time
"I assume...they can also step into prevent it being bought by another company."
They didn't step in to stop, say O2 being bought by Telefónica or the various other mobile networks being bought by foreign overseas companies. Back in the days of the golden share HMG could have prevented it but those days are long gone. And remember Deutsche Telekom already owns 12% of BT as a consequence of the EE deal.