Michael Hughes: Islamabad introduced trade restrictions targeting a frail Afghan economy because – apparently – threatening to send 1.7 refugees to Afghanistan wasn’t enough of a message to send the Taliban in one week. On the surface they appear more disruptive than anything, but the measures could be the opening salvo of a one-sided trade war if the Taliban refuse to curb support for the militant extremists that are wreaking havoc in Pakistan. Click here to read more.