From the Spectator:
Why Britain was excluded from Horizon
By Gus Carter
"What do Ukraine, Armenia, Israel and New Zealand have in common? None is an EU country and yet all of them are members of the EU’s Horizon programme, an £81 billion science funding scheme that, it was announced today, the UK will rejoin.
Britain had been one of the largest beneficiaries of the scheme before it left the EU. Throughout the Brexit process, the UK had expressed an interest in continuing as an associate member of Horizon, which gives scientists access to grants provided their country is signed up and pays in. It’s a status enjoyed by plenty of non-EU countries, and yet we ended up outside the scheme.
Even after Brexit, the UK continued to negotiate for access, but has only now secured the funding. Part of the Trade and Cooperation Agreement signed between the UK and EU specifically bans either party using EU programmes as leverage in wider negotiations. And yet the EU withheld Horizon membership because of ‘questions tied to the protocol on Northern Ireland’. In other words, the EU was withholding science funding, breaching the agreement it had signed and harming Europe-wide research in the process.
The wrangle over Horizon once again reveals the ways in which the EU was not a neutral actor in Brexit negotiations. Perhaps today’s deal is an indication that such pettiness has come to an end."
Personally, I'm not holding my breath about the EU giving up on pettiness...