This is from a Der Spiegel blog in the Guardian
http://www.guardian.co.uk/world/blog/2011/mar/14/new-europe-live-blog-germany#block-6 12.03pm: Another dramatic development: Der Spiegel has decided to pull its reporter out of Tokyo because of the risk a Chernobyl-style radiation cloud could reach the Japanese capital. Thilo Thielke, Spiegel's veteran war correspondent, is leaving Japan today. Spiegel is now covering the story from Bangkok and the south of Japan. Mathias Müller von Blumencron says the latest information is ominous: the wind is blowing from the north – in the direction of Tokyo. "Perhaps this is a piece of German angst. But no country is more against nuclear power than Germany," he says. He adds: "The wind is shifting from the north and could blow a cloud south directly to Tokyo. This is really horrible. I think this is a big, big crisis and a wake-up call for nuclear energy." The German embassy is also making preparations to evacuate some staff, apparently.
Earlier post from same blog shows more on their concerns:
9.30am: Morning conference in the offices of Spiegel Online has just got under way. The main theme of discussion is Japan and the rapidly worsening situation at the Fukushima reactor. There's a view among Spiegel journalists that the Japanese government is deliberately underplaying the scale of the crisis in order to prevent panic breaking out among Japan's population. Mathias Müller von Blumencron, Spiegel's chief editor, puts it like this: "These are historic days. The news we've had in the last few minutes suggests that the nuclear reactor's core could be heading for a meltdown."