He is called a superhero and feted with financial rewards from Afghan politicians, but the lionisation of the soldier who singlehandedly killed six attackers in parliament belies bubbling discontent over deteriorating security.Essa Khan laghmani, 28, was plucked from obscurity and catapulted to national fame this week after he shot dead the Taliban insurgents who on Monday launched a gun and grenade assault on the legislature, sending terrified lawmakers scurrying for cover. “Taq Chapako!” — “Bang! and down” in Dari — meanwhile became an Internet meme after he used the phrase in television interviews to describe how he effortlessly knocked down his targets as though they were skittles in a bowling alley.