In August, the safety board concluded its investigation into a February 13, 2008, incident in which two pilots aboard a Go airlines flight fell asleep and traveled 26 miles beyond the destination of Hilo, Hawaii, before waking and contacting air traffic controllers.

CNN: Crew of wayward airliner cooperative, sober, police say

They are semi-submersible heavy lift ships, which is to say that the ships are designed to be ballasted down so that their main decks go underwater, allowing their cargo to be floated aboard.

FORBES: Will the Vanguard Semi-Submersible Ultra Heavy Lift Ship Keep Dockwise Afloat?

The boat with 16 fishermen aboard was seized for ransom two weeks ago, but was let go without money exchanging hands.

NPR: 10 Things To Know For Today

Welcome aboard Air Force One as we make our way north to Northern California, San Francisco, before we go to Denver.

WHITEHOUSE: The White House