A bayonet isn't much use to fighter pilots or even to tank commanders because a bayonet only does its gruesome work when the fighting gets up close and personal.

To help you better understand how these samples work, we created videos that provide a look “under the hood” for Fish Tank, Amazon Shelf, and Video Panorama.

The main reason children drop out is not poor teaching but the need to work and, for girls, to marry, according to the Mexican Institute for Competitiveness (IMCO), a think-tank.