The international community could soon take a second look at the generous economic aid it began to pour into Pakistan after September 11 as a possible step to increase the pressure on General Pervez Musharraf to deliver on infiltration. Indications of this came even as British Foreign Secretary Jack Straw today slammed Islamabad’s description of violence in Kashmir as the outcome of a ‘‘freedom struggle.’’ Musharraf’s men spread out Musharraf is sending five envoys, including Farooq Leghari and Ashraf Qazi, to US, Europe and Muslim countries General’s warning