"I still lack command, I'm not throwing strikes and that kind of makes me mad, " Nova said.

WSJ: Arencibia homers as Blue Jays beat Yankees 8-4

I'm also pleased to nominate General David Petraeus to take command in Afghanistan, which will allow us to maintain the momentum and leadership that we need to succeed.

WHITEHOUSE: President Obama's Statement on General McChrystal and Afghanistan | The White House

The latest incident occurred around 12:30 p.m. local time on Thursday in a rugged part of the U.S. Special Operations Command facility at Pinal Airpark, military officials said on Friday.

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