A No 10 source tells me that the Prime Minister understands the military decision yesterday to order the banning of wearing uniforms off base in London in the immediate aftermath of the murder.
But I understand David Cameron thinks the best way to defeat terror to "act normally", so the temporary order has been lifted.
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Gulf War veteran Paul Briggs' widow, Lindsey, 40, launched legal action to have his life support withdrawn so he could "die with dignity".
Rescue workers are at the site Sunday morning trying to cut open mangled coaches.
Despite chilly temperatures it will be a mostly dry day, and milder than yesterday.