DVB-S is the satellite equivalent of DVB-T which is Mpeg2.
DVB-S2 is the equivalent of DVB-T2 which is Mpeg 4.
The only difference is that nowhere in the UK is mpeg2 used for HD terrestrial broadcasts, whereas satellite broadcasting still frequently uses mpeg2 for HD content.
DVB-T (Mpeg2) is used for SD broadcasts in the UK. DVB-T2 (MPeg4) is used for all the HD channels (terrestrially).
Francis Maude (the minister setting this up) - "Through the excellent work of GCHQ, in partnership with other government departments, the private sector and academia, we are able to counter threats and ensure together we are stronger and more aware."
And if the spy agencies are the threat? Who will protect us from those who wish to protect us?
Perhaps the course will be teaching people how to evade the mass surveillance of GCHQ and their pals at the NSA? Seems unlikely!
... "seperate"
The government has files on everyone (or nearly everyone); people never suspected of, or implicated in, any crime.
How is this different from what the Stasi did?
Anyone can make an omelet with eggs. The trick is to make one with none.