NBC News — The company that operates Japan's crippled nuclear power plant has a new leader. Tokyo electric power company's new president appeared wednesday in front of reporters for the first time since he took office at a shareholder's meeting tuesday.

The new head takes over after the company's former president quit, taking responsibility for the ongoing disaster at the Fukushima nuclear power plant. Officials say it could take as long as the end of the year to bring the plant under control.