We've beefed up nuclear arsenal, North Korea claims

North Korea claims it has bolstered its nuclear arsenal to prevent the alleged threat of an invasion even as Washington’s top diplomat says time is running out for the communist government to return to international disarmament talks.

“We have taken a serious measure by increasing nuclear arms arsenal in preparation for any invasion by enemies,” the North’s Korean Central Broadcasting Station said in a commentary, according to a report last night by South Korea’s Yonhap news agency.