North Korea's de facto No. 2 figure expressed eagerness Thursday to bolster the country's nuclear capabilities, just days after it invited South Korean President Moon Jae In to visit Pyongyang for a summit."While firmly strengthening self-defense nuclear deterrence, we should develop and produce strong and advanced military equipment," Choe Ryong Hae, a key official of the ruling Workers' Party, said in a speech, according to state television channel KCTV.But Choe, regarded as the right-hand man of North Korean leader Kim Jong Un, did not mention ties with the United States and recent moves…READ FULL ARTICLE