Failing to make much headway in its talks on the India-US nuclear deal, the UPA-Left committee on the pact has decided to undertake another round of negotiations on May 28 even as it becomes increasingly clear that time is running out as the tenure of the Bush administration comes to an end. The government indicated to the the Left parties that the nuclear deal was being squeezed for time and foreign minister Pranab Mukherjee told them during the eighth meeting of the committee that problems were only going to grow in the coming days.