Peru's Culture Minister Diana Alvarez-Calderon (R) and Deputy Culture Minister Luis Jaime Castillo hold a news conference in Lima December 15, 2014. Peru said on Monday that it may seek the extradition of members of environmental group Greenpeace for causing "irreparable" damage to the Nazca Lines - giant designs mysteriously etched into the sand and preserved for more than 1,500 years. The activists left Peru after leaving behind a trail of footprints in a delicate stretch of desert near the iconic Nazca figure of a hummingbird, where they spelled "Time for change! The future is renewable" in large cloth letters, said Alvarez-Calderon. REUTERS/Enrique Castro-Mendivil (PERU - Tags: ENVIRONMENT POLITICS)