LONDON — The report that North Korea had set off a second underground nuclear explosion made headlines here, but European eyes were on issues closer to home, including elections to the European Parliament and the state of the European economy.

The main focus in Britain has been on the crisis of public confidence in members of Parliament and the fiddling over their expenses. This is important in the context of maintaining a healthy democracy, but may appear petty and remote to readers in Japan, for whom the potential threat from North Korea must be particularly disturbing.

Perhaps the most worrying aspect of the North Korean threat is the lack of any consensus on how to respond. The North Korean regime has rebuffed direct overtures and declared it will not return to the six-party talks. It has also abrogated the armistice with South Korea and threatened to take retaliatory action if there is interference with North Korean shipping, which the United States and others suspect could transport nuclear arms or materials for export.