'Darkhorse' Battalion And The Afghan War  This past week, All
Things Considered has been sharing stories about the Darkhorse
Battalion — that's the Marine unit that suffered the highest
casualty rate of any Marine unit during the 10-year Afghan war.
NPR Pentagon correspondent Tom Bowman wraps up the series today,
as he tells weekends on All Things Considered guest host Laura
Sullivan about some of the people he met — both on the
battlefield and on the home front.    All week, we've been
reporting on one Marine unit. They're called Darkhorse. And they
had a horrific deployment to Afghanistan about a year ago. They
lost 25 Marines and many, many more were wounded.  NPR Pentagon
correspondent Tom Bowman has been telling their stories. And
Tom's here in the studio with me now because we wanted to learn
a little bit more about these Marines and their families and how
they made it through. Tom, thanks so much for joining us.
SULLIVAN: I've listened to all of your reporting this week, and
I think what I've never h