Sir: The demon of sectarian murder has been unleashed upon Karachi once again with many prominent members of the religious clergy being targeted to create chaos and mayhem in the city. This has led to a ban on pillion riding for the next 10 days in Karachi because armed motorcyclists are said to be behind the murders. While the ban is a first response reaction, what is needed is a proper solution to the flames that routinely engulf our commercial hub. We need the police to do its job and security agencies to root out these terror suspects once and for all. How many times can Karachi burn?Political forces must band together to rid Karachi of the anarchists who thrive on its destruction. We citizens will know no peace until then.SOHAIL IJAZKarachi