I think hameed gul's point is right that america is planning for nato supply through india and containers coming from india will not be opened and will be transferred to afghanistan under the name of trade. Very subtle and neat planning by USA through zardari and MFN status and also it clarifies a bit why US put bounty on Hafiz Saeed at this particular time , the only reason for which is that US tried to make india happy for its own requirements of nato supply...