ONE of two schoolboys arrested yesterday as they were allegedly preparing to behead someone in Sydney’s southwest is the son of a convicted terrorist. Police swooped on the 16-year-olds in a laneway behind a Bankstown mosque about midday, hours after the pair allegedly bought two bayonets at a gun shop. The threat of an attack was considered imminent and police wearing protective vests descended on the prayer hall after officers received information about the alleged purchase of the knives. The pair allegedly also had pieces of paper with religious statements written on them that were to be read out while...