Let's not take our eye off of their balls, as it were.
G4S does not exist to provide security for anywhere, it exists to make a profit for shareholders. That's all.
One thing that all business leaders have learned in recent years is that performing well is no requirement of getting government money.
Once you have the contract signed, the money is as good as in your pocket. Performance is not part of the deal anymore.
This looks like the equivalent of the Nimrod farce all over again. Having paid a contractor (G4S/BaE) for the product (Security/Nimrod), we now realise they are not up to it so we'll do without a part of their contribution but let them keep all of the money anyway.
The troops will make do, so that's all right then. Double Gin and jobs for the (Senior) boys all round.