Muscovites back a tough response to Ukraine's shock border incursion, the most serious attack by a foreign army on Russian territory since the Second World War, as Russia announced a "counter-terror operation" that gives the security forces sweeping powers in Kursk and two other border regions. "I think it was introduced too late," says a man named Denis, who declines to give his surname, criticising the fact that the measures came in only five days into the incursion, adding that "special troops" should have been brought in immediately. IMAGES AND SOUNDBITES