The M51 missile failure: where does this leave French nuclear modernization?

The latest M51 ballistic missile test was a failure. The missile blew up minutes after emerging from the French submarine, Le Vigilant, in the Audierne Bay (off the coast of Brittany) on May 5. French leaders have always claimed that France has never participated directly in the Cold War arms race; but, the scale of its current modernization program of nuclear weapon systems, running for over fifteen years, is massive.