Athens (Greece), May 08, 2007 (ANI): Speaking to scientists and academicians at the National Centre for Scientific Research at Demokritos, Athens, on Friday, President A.P.J.Abdul Kalam said that "energy independence is India's first and highest priority." Kalam also advocated the need for using thorium reactors for the country, saying, "India has to go for nuclear power generation in a big way using thorium-based reactors. Thorium, a non fissile material is available in abundance in our country."