An image of Florencio Avalos, one of the 33 miners trapped in the San Jose collapsed mine, is seen on a TV set near the mine in Copiapo, Chile, on Aug. 26. Natacha Pisarenko/AP
A camp for relatives of 33 miners trapped in a hot and humid copper and gold mine 2,300 feet down is seen at Copiapo, Chile, on Aug. 31. Chile is looking at ways to speed up the rescue of the miners, and the government has turned to NASA and submarine experts for help. The bid to rescue miners is one of the world's most challenging and could take between two and four months. Ivan Alvarado/Reuters
Relatives of 33 trapped miners wave to rescue workers outside the collapsed San Jose mine in Copiapo, Chile, on Aug. 23. Roberto Candia/AP
Alberto Segovia shows a photograph of his brother Dario Segovia, one of 33 miners trapped in the collapsed San Jose mine, outside the mine in Copiapo, Chile, on Aug. 24. Roberto Candia/AP
A banner that reads, "We are waiting for you, your families and friends. Luis Zamora and Carlos Barrios" is seen outside the copper and gold mine where 33 miners are trapped near Copiapo, Chile, on Sept. 7. Rescue workers are preparing to begin using a Schramm T130 Drill, normally used to bore water wells, parallel to another slower one already working, in a bid to reach the miners stuck in a hot and humid tunnel at 2,300 feet. Luis Hidalgo/Reuters
Jennifer Navarrete, a relative of one of 33 miners trapped at the San Jose mine shows on his mobile phone new images of the miners in Copiapo, Chile, on Aug. 26. Roberto Candia/AP
Lilianette Ramirez, wife of miner Mario Gomez, holds the first letter retrieved from her husband who is trapped in the collapsed San Jose mine in Copiapo, Chile, on Aug. 24. Roberto Candia/AP
An image of a miner sits next to religious figures at the camp where the relatives of 33 trapped miners wait outside the collapsed San Jose mine in Copiapo, Chile, on Aug. 27. Roberto Candia/AP
Trapped miner Mario Sepulveda (l.) talks to his relatives during a video conference at the collapsed San Jose mine in Copiapo, Chile, on Sept. 4. AP
A frame grab shows a drill bit of a machine, the Xtrata 950, that will dig an escape hole from the top of a hill where 33 miners are trapped underground in a copper and gold mine at Copiapo, Chile, on Aug. 31. Chilean Mining Ministry/Reuters
A video grab shows a banner that reads "Emergency Refuge," in a copper and gold mine where miners are trapped at Copiapo, Chile, on Aug. 27. Chilean Mining Ministry/Reuters
Women light candles next to Chilean flags representing 33 trapped miners outside the San Jose mine in Copiapo, Chile, on Aug. 25. Roberto Candia/AP
Lilianette Ramirez, wife of miner Mario Gomez, sweeps outside her tent on Aug. 26, as she waits for her husband, who is among 33 miners trapped in the collapsed San Jose mine in Copiapo, Chile. Natacha Pisarenko/AP
In this TV grab taken from a video released by Chile's government on Tuesday, Aug. 31, miners wave inside the San Jose mine in Copiapo, Chile. Thirty-three miners have been trapped since the mine collapsed on Aug. 5. AP
Relatives of 33 miners trapped alive in the San Jose mine stand among Chilean flags outside the mine in Copiapo, Chile, on Aug. 29. Roberto Candia/AP
A message in Spanish that reads 'We are OK in the refuge, the 33 miners,' from miners trapped in a collapsed mine, is held by Chile's President Sebastian Pinera in Copiapo, Chile, on Aug. 22. The miners have been trapped below the surface of the mine since the main access collapsed on Aug. 5 due to tons of falling rock. Hector Retamal/AP
In this image taken from video of 24 Horas, Chile's Mining Minister Laurence Golborne (l.) smiles as an unidentified official listens with a medical oscilloscope to unknown sounds coming from the area of a collapsed mine where about 33 miners have been trapped for 17 days in Copiapo, Chile, on Aug. 22. AP
A poster shows pictures of the 33 miners trapped in a deep underground copper and gold mine in Copiapo, Chile, on Aug. 22. The 33 Chilean miners trapped deep underground sent a message to the surface tied to a drill saying they were all alive. Experts said it would take months to dig them out. President Sebastian Pinera said the paper message was tied to a perforation drill that rescuers used to bore through to the area near an underground shelter, where the miners took shelter after the Aug. 5 collapse at the gold and copper mine. Ivan Alvarado/Reuters
This image from video shows one of 33 miners trapped in a mine during the first contact with a video camera in Copiapo, Chile, Aug. 22. A video camera lowered down the probe shaft showed some of the miners, stripped to the waist in the underground heat, waving. AP
Chile's President Sebastian Pinera (r.) holds up a plastic bag containing a message from miners trapped in a collapsed mine that reads in Spanish 'We are OK in the refuge, the 33 miners' in Copiapo, Chile, on Aug. 22. Jose Manuel de la Maza/AP
Relatives of miners trapped in a collapsed mine react after being informed that one of the drill machines being used in the rescue effort has reached the depth where the miners are thought to be located after 17 days in Copiapo, Chile, on Aug. 22. Hector Retamal/AP
Relatives and miners hold a sign reading in Spanish: 'Strength,' while attending mass outside a collapsed mine where about 33 miners are trapped in Copiapo, Chile, on Aug. 10. Luis Hidalgo/AP
A drill machine being used to try to contact 33 trapped miners is seen from the distance in Copiapo, Chile, on Aug. 9 Luis Hidalgo/AP
Relatives waiting outside a collapsed mine where about 33 miners are trapped place a Chilean flag in Copiapo, Chile, on Aug. 9. Luis Hidalgo/AP
Co-workers wait outside a collapsed mine where about 33 miners are trapped in Copiapo, Chile, on Aug. 7. Luis Hidalgo/AP
Miners, relatives, and rescue workers stand outside a collapsed copper and gold mine during a rescue effort for 33 trapped miners in Copiapo, Chile, on Aug. 7 after the mine collapsed on Aug. 5. Luis Hidalgo/AP
Relatives rest next to a copper and gold mine where 33 miners are trapped in Copiapo, Chile, on Aug. 6, a day after a cave-in at the mine. Ivan Alvarado/Reuters
Riot police advanced on protesters in Istanbul's Taksim Square shortly after Prime Minister Erdogan warned the peaceful demonstrators to clear out or be forcibly removed.
Riot police fired water cannons and tear gas on protesters in Istanbul's Taksim Square and neighboring Gezi Park on Saturday, an intervention that came shortly after the prime minister warned that security forces "know how to clear" the area.
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