Governments around the world have condemned North Korea for conducting its third nuclear test since 2006. Pyongyang confirmed the test hours after seismic sensors registered a possible underground explosion.
Chinese nuclear experts reportedly believe North Korea may already have a nuclear arsenal of 20 warheads. They also claim Pyongyang has the uranium enrichment capacity to double that figure by 2016, a US newspaper says.
Skeptical US lawmakers have been probing the "framework agreement" on Iran’s nuclear program. DW spoke to one of the leading experts giving testimony on Capitol Hill, former UN weapons inspector David Albright.
One important issue on the agenda for Japanese PM Shinzo Abe's visit to Washington will be increased US-Japanese military cooperation. Japan and the USA are agreed - but there are some reservations in Asia.
For a nation to do devastating damage to the telecommunications devices you use, it would not have to fire a nuclear missile at your country. The upper atmosphere would suffice.