WASHINGTON (INP) - US Assistant Secretary of State for South and Central Asian Affairs Robert O. Blake has said that Pakistans greatest weaknesses are economy and security challenges and there is need for international community to help the country so that it can overcome the many challenges it faces. In an interview with CNBC TV on Monday, he said that Pakistans strength is its democracy and the number of highly educated people that are a great resource for the country. 'I think the greatest weakness now it is a combination of things. Its the economic, the security challenges, and the need for all of the international community to help Pakistan so that it can overcome the many challenges it faces, Blake asserted. Replying to questions about nuclear cooperation with India, Robert Blake said the two countries are close to completing the govt-to-govt civil nuclear deal.