Uzbekistan, which has been unhappy with Tajik plans for the construction of the Roghun hydroelectric plant, has continued to claim that the project will cause environmental problems. In reality (and, it could be argued, legitimately), Uzbekistan is concerned about the future provision of irrigation water for its cotton industry. In an attempt to dissuade Tajikistan from pursuing the Roghun project, in 2010 Uzbekistan temporarily blocked all rail traffic of goods bound for Tajikistan, periodically blocked strategic checkpoints on the Tajik border and regularly threatened to stop the delivery of natural gas if Tajikistan did not settle the arrears in its payment for Uzbek gas. Despite these obstacles, in recent months Tajikistan appears to have had the upper hand in the propaganda war with Uzbekistan on the Roghun project. A report in February by the US Senate Committee on Foreign Relations on water use and security in Central Asia, a recent response of the World Bank to a communiqué by Uzbekistan on the issue, and comments by a UK member of the European Parliament (MEP), Struan Stevenson, on Central Asian water use (see Economic policy) all appeared to support the Tajik rather than the Uzbek position. However, whether the project goes ahead is likely to depend on the findings of a World Bank feasibility study into the environmental and social impact of the project.