News bites: Japan vows ‘emergency’ steps at hobbled nuke plant, drones for oil in Alaska and more

The Wall Street Journal reports on the limits of U.S. oil pipeline capacity.

“More crude oil is moving around the U.S. on trucks, barges and trains than at any point since the government began keeping records in 1981, as the energy industry devises ways to get around a pipeline-capacity shortage to take petroleum from new wells to refineries,” the paper reports.

AP reports that the head of China’s biggest oil company faces a government investigation there.

Politico reports on energy technologies that haven’t lived up to their hype.