1984 Bhopal Gas Disaster

A worker cleans the dust as he displays a panel of photographs of people who died in the 1984 Bhopal gas disaster at the forensic department of Gandhi Medical college in Bhopal, India, Tuesday, June 8, 2010. A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

A worker displays jars containing fetuses preserved from the 1984 Bhopal gas disaster at the forensic department of Gandhi Medical college in Bhopal, India, Tuesday, June 8, 2010.A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

A worker cleans the dust as he displays a panel of photographs of people who died in the 1984 Bhopal gas disaster at the forensic department of Gandhi Medical college in Bhopal, India,June 8, 2010.A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Activists clean photographs of victims as they prepare for a candlelit vigil in Bhopal, India, Tuesday, June 8, 2010. A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Children walk near the boundary of Union Carbide factory in Bhopal, India, Tuesday, June 8, 2010.A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Survivors hold photographs of their dear ones killed in the 1984 gas disaster during a candlelit vigil in Bhopal, India, Tuesday, June 8, 2010. A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Survivors hold photographs of their dear ones killed in the 1984 gas disaster during a candlelit vigil in Bhopal, India, Tuesday,2010. A court Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Indian policemen rescue a factory employee, right, who was held captive by protesting villagers at Singur, West Bengal state, India, Tuesday, June 8, 2010. Angry villagers organized a violent protest forcing closure of a chemical factory after smoke with heavy carbon content escaped from the unit affecting the local people, local news reports said Tuesday. The protest came a day after an Indian court convicted seven for their roles in the 1984 leak of toxic gas that killed an estimated 15,000 people in the world's worst industrial disaster in Bhopal.(AP Photo) INDIA OUT

Former Union Carbide Chairman Keshub Mahindra comes out of Bhopal court after verdict in Bhopal, India, Monday, June 7, 2010. An Indian court on Monday convicted Mahindra and six other former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago in the world's worst industrial disaster. (AP Photo)

An elderly survivor holds a poster of Warren Anderson, the head of Union Carbide Corp. at the time of the gas leak, as she waits for the verdict in the premises of Bhopal court in Bhopal, India, Monday, June 7, 2010. The court on Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Partially blind gas victim waits for the verdict with other victims in the premises of Bhopal court in Bhopal, India, Monday, June 7, 2010. An Indian court on Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Survivors hold posters as they wait for the verdict in the premises of Bhopal court in Bhopal,Monday, June 7, 2010. The court on Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago in the world's worst industrial disaster. (AP Photo)

Activists, from left, wearing Union Carbide Corp. logo, face masks of Indian Prime Minister Man Mohan Singh, former Union Carbide chief Warren Anderson and Indian Justice Ahmadi dance in the premises of Bhopal court in Bhopal, India, Monday, June 7, 2010. The court on Monday convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago in the world's worst industrial disaster. (AP Photo/Prakash Hatvalne)

Bhopal gas tragedy survivor and gas victims hold posters and shout anti govenment slogans at the district court as they wait for the verdict in Bhopal, Madhya Pradesh

A crowd watches as a man pastes identification labels onto dead children's foreheads, killed in the December 1984 Bhopal Gas tragedy

The Union Carbine plant in Bhopal, 25 years after the deadly gas leak

FILE In this Dec. 5, 1984 file photo, two men carry children blinded by the Union Carbide chemical pesticide leak to a hospital in Bhopal, India. An Indian court on Monday, June 7, 2010 convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago. (AP Photo/Sondeep Shankar, File)

FILE In this Dec. 10, 1984 file photo, Warren Anderson, the head of Union Carbide Corp. at the time of the gas leak from its plant in Bhopal in India, speaks in Danbury, Conn. An Indian court on Monday, June 7, 2010 convicted seven former senior employees of Union Carbide's Indian subsidiary, not including Anderson, of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago. (AP Photo/Ron Frehm, File)

FILE In this Dec. 1, 2009 file photo, a security guard is silhouetted against defunct machinery at the Union Carbide pesticide plant where 40 tons of lethal methyl isocyanate (MIC) gas leaked in Bhopal, India, on Dec. 3, 1984. An Indian court on Monday, June 7, 2010 convicted seven former senior employees of Union Carbide's Indian subsidiary of death by negligence for their roles in the Bhopal gas tragedy that left an estimated 15,000 people dead more than a quarter century ago. (AP Photo/Altaf Qadri, File)

A woman and her child lie dead on a street on December 3, 1984, after the toxic gas leak. The acciden killed thousands and contaminated water and soil when toxic methyl isocyanate gas leaked from Union Carbide's pesticide plant