Klaus describes his request as a “footnote”; it’s anything but. EU diplomats make it clear that negotiations would have to open. A spokesman said:
“I repeat: At no point did the Czech government ask for this opt-out during Treaty negotiations. The ball is now in the court of the Czech Prime Minister Jan Fischer - he'll have to decide if he wants to risk re-opening the Treaty negotiations, because that is what will be involved.”
Whether or not the Czechs will take that risk, for re-opening negotiations would throw a spanner in the works and possibly endanger the Czech’s membership, is doubtful. But this development offers British Eurosceptics a glimmer of hope because there is no such thing as a brief discussion in Brussels. It’s a slim chance, but real enough. Watch this space.