Britain's Trident nuclear-deterrent system reportedly misfired during a test, with a missile crashing into the ocean off Florida. The Ministry of Defence confirmed an 'anomaly' but assured that the "nuclear deterrent remains safe, secure and effective." The incident, witnessed by Defence Secretary Grant Shapps, marks the second Trident missile test failure. The government faces scrutiny over the failure, which comes amid concerns about the readiness of Britain's navy. The Trident system costs around £3 billion per year to operate, and a new class of submarines is set to enter service in the 2030s.