Original sentence: Despite Iran's huge oil and gas reserves, those sectors have been relatively neglected in favor of a nuclear energy program which has cost billions of dollars and has been condemned by Israel and the United States, who claim that the program is a cover up for a much larger nuclear weapons program
Edited sentence: Despite Iran's huge oil and gas reserves, those sectors have been relatively neglected in favor of a nuclear energy program which has cost billions of dollars and has been condemned by most of the world, including Israel and the United States, who claim that the program is a cover up for a much larger nuclear weapons program