The loss of the space shuttle Columbia in February of two thousand three led to an investigation by the Columbia Accident Investigation Board.

VOA: special.2009.12.30

The navigators' lack of knowledge led to the loss of four ships and two thousand lives.

VOA: special.2010.07.14

For patients from two to eighteen, the guidelines are similar except there should be no loss of consciousness, no vomiting and no severe headache.

VOA: special.2009.10.28

The two countries had the highest loss of forests in the nineteen nineties.

VOA: special.2010.04.06