On Wednesday the Securities and Exchange Commission is expected to vote on an obscure section of the Dodd-Frank financial reform law requiring manufacturers to disclose whether they buy certain metals -- tin, tantalum, tungsten and gold -- that have fueled years of war in Congo. The metals are used in consumer electronics including computer chips, digital cameras, video-game consoles and mobile phones. Although...some criticisms of it are reasonable...the SEC should vote to adopt it...Since the fall of President Mobutu Sese Seko in the late 1990s, civil conflict in the Democratic Republic of Congo has claimed more than 3 million lives. Mineral wealth has been a driving force in the conflict...More than 60 workers were killed in a mine collapse just last week. Rape is widespread... [refers to positive steps by Intel, General Electric, HP, Motorola Solutions; also refers to Nintendo]