After the Paris terror attacks, "we know what Mumbai-style attack looks like", a leading British daily said today, underlining that this is war in which everyone is equally at risk.
In an editorial titled 'Paris attacks: It's war, but not as we know it', The Independent said: "The course of inaction is no longer possible. The danger of a Mumbai-style marauding terror attack in Britain has been understood by the security services ever since those dark days in India in 2008.
"Now, after Paris, we know what such an attack looks like. That's the sort of war we are in. We won't get out of it without a concerted effort."
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"The difference this time is that there are no sirens, no air raid shelters, instead there is only the naked dread that comes from knowing that the attacks can come at any time, from any direction, and that - unlike, say, the IRA's (Irish Republican Army) bombers - these killers want and expect to die in the process, to become "martyrs".
"With the possible exception of chemical or biological attacks, it is hard to conceive of anything more frightening," it said.
Meanwhile, Bruce Riedel, Director of The Intelligence Project at American think-tank Brookings, said in an article that the horrific terrorist attack in Paris was likely modelled on the 2008 Mumbai attack.
He said Mumbai has been studied by both terrorists and counter-terrorists because it "set a gold standard for how a small group of suicidal fanatics can paralyse a major city, attract global attention, and terrorise a continent".