1) UK government: Terror threat lowest level since 7/7 bombings (July 2009)
2) [from the archives] UK interior minister: The threat of a chemical or nuclear attack is now more real (March 2009)
excerpts from: Terror threat lowest level since 7/7 bombings
by Martin Bentham, Evening Standard, 20 July 2009
The official terrorist threat level was today downgraded to its lowest level since before the 7 July London bombings in 2005.
The decision to reduce the classification from “severe” to “substantial” means that although an attack is believed to remain a strong possibility, it is no longer regarded as highly likely.
The change, which follows a renewed assessment of the danger by the Government’s Joint Terrorism Analysis Centre, was announced by Home Secretary [i.e. UK Interior Minister] Alan Johnson. […]
The last time the official threat level – which can range across five classifications from “low” to “critical” – was set at substantial was in May 2005, two months before the July 7 bombings.
Since the London attacks it has generally remained at “severe”, despite occasionally and briefly rising to “critical” […]
The threat level was last at critical in June 2007 following the attack on Glasgow Airport and the failed car bombings in central London.