A Second Class stamp <a href=" http://www.gasworldltd.co.uk/mirtazapine-online-uk.pdf#troop ">mirtazapine 30 mg sleep aid</a> While Obama and Rouhani had exchanged courteous letters ahead of the U.N. meeting, all signs point to a tough road ahead as their two countries seek to engage diplomatically. Both men face the risk of domestic criticism if they are perceived to have given too much ground to the other side.