Officials say they will also investigate whether warning signs about Major Hasan's behavior were ignored.

VOA: special.2009.11.14

Nadal, who had gone past 25 seconds after another long point in the first set, with no warning, ignored it.

WSJ: A Little Night Tennis, Anyone?

The report warned that in the era of Apple's touch-only devices, keyboards would make up a diminishing share of the market, according to a person familiar with it, who said the warning was ignored.

WSJ: BlackBerry Maker's Long Slide

Were warning signs ignored by ministers?

BBC: Questions remain over foot-and-mouth