North Korea says it will launch a satellite on a rocket between 12-16 April. Recent images suggest that work at the launch site is already under way, according to a US university. This has prompted anger outside North Korea, particularly from the Japanese, who say they will intercept any such satellite. Chung-In Moon, professor of political science at Yonsei University in Seoul and advisor to the South Korean government, spoke to RFI about the implications of this satellite launch.