A combination photograph shows (left) Janos Fuchs in Kolontar, 150 km (93 miles) west of Budapest, going through the rubble of his mother's home, which had been damaged by a flood of toxic red sludge, on October 6, 2010, and (right) Fuchs posing at the same location where the house had once stood on September 23, 2011, after the affected areas had been bulldozed. Ten people died and more than 120 were injured when the waste reservoir of a nearby alumina plant broke on October 4, 2010, causing Hungary's worst ever industrial catastrophe. #

A police officer wears a protective mask as he stands guard at an alumina plant reservoir which cracked and unleashed a torrent of toxic red sludge in Kolontar, Hungary, on October 10, 2010. #

Zoltan Bakonyi, head of aluminium company MAL Zrt, covers his face after the Veszprem county court released him from custody in Veszprem, Hungary, on October 13, 2010. #

A before-and-after pair of photos of (before) a toxic waste cleanup specialist cleaning the street in Devecser, Hungary, which had been inundated by a flood of toxic red sludge, on October 8, 2010, and (after, click to view) the same area on September 23, 2011, by which the affected houses had all been bulldozed and the area mostly cleaned. [click image to view transition - javascript required] #

In this before-and-after pair of images, a man (before) walks along a red-sludge-flooded street in the town of Devecser, Hungary, on October 9, 2010, and (after, click to view) the same area on September 25, 2011, after the houses had been demolished. [click image to view transition - javascript required] #

A combination before and after set of photographs shows (before) the backyard of a house in Kolontar, Hungary, which had been inundated by a flood of toxic red sludge, on October 7, 2010 and the same area (after, click to view) on September 25, 2011, after houses had been demolished and the affected area largely cleared of caustic waste. [click image to view transition - javascript required] #

Before: A man tries to clear toxic red sludge from the yard of a house in the village of Kolontar, Hungary, on October 7, 2010 and (after, click to view) the same area on September 23, 2011, after buildings and homes had been torn down. [click image to view transition - javascript required] #

A combination photograph shows (left) 80-year-old Jozsef Bors trying to clean his house in the town of Devecser, Hungary, after it had been inundated by a flood of toxic red sludge, on October 6, 2010 and (right) standing outside his new home which he received in compensation, in another part of Devecser, on September 23, 2011. #

The ground in the village of Kolontar, Hungary, inundated by a flood of toxic red sludge, on October 6, 2010 and the same area (right) on September 25, 2011, after the affected area had largely been cleared of caustic waste. #

At left, shopkeeper Margint Kunos cleans red sludge from her store in the town of Devecser, Hungary, on October 11, 2010 and (right) Kunos, who still works in the same store, on September 23, 2011. #

The village of Kolontar, Hungary, damaged by a flood of toxic red sludge on October 9, 2010 and the same area (right) on September 23, 2011, after the affected houses were all bulldozed. #

A present-day aerial view of the waste reservoir of Hungarian Aluminium (MAL) near Kolontar, Hungary, on September 23, 2011. MAL was under state management for months and received a record $647 million fine, but continues its operations to this day. The waste reservoir wall has not been repaired, but the firm has switched to a dry technology and erected multiple layers of emergency dikes. #

A girl sits in front of portraits of former Soviet dictator Vladimir Lenin, as 230 Communist-era relics are to be auctioned to benefit the victims of the red sludge flood, on December 6, 2010 in Budapest. #

Construction at a state-financed housing project for red sludge victims in the town of Devecser, Hungary, on July 14, 2011. The flood of toxic red sludge which devastated Devecser and the neighboring Kolontar in October has cost Hungary over 30 billion forints ($158 million, or 111 million euro) in damages and reconstruction costs. #

An aerial photo shows the path carved by the torrent of toxic red sludge through the town of Devecser, Hungary, on September 23, 2011. Affected buildings were demolished, and much of the soil cleaned up. #

Tunde Erdelyi, rescuing her cat from the wreckage of her home in the town of Devecser, Hungary (at left), on October 5, 2010 and Erdelyi today (right) in the village of Bazsi on September 23, 2011. She now has a new cat because the old cat unfortunately ran under a car only two days after being rescued. #