Environmental activists are lobbying hard at the United States Export-Import Bank (Exim) and the Inter-American Development Bank in Washington against loans for a controversial gas and pipeline project in Peru that they say threatens isolated groups of indigenous people and their Amazonian homeland. The project is led by Pluspetrol and Techint, two Argentinian energy companies, Texas-based HuntOil, and includes several other energy companies, including SK Corporation of South Korea, Sonatrach of Algeria, and Peru's own Grana y Montero. Citigroup...has acted as the consortium's chief financial adviser for the project.