Dead Terrorists Tell No Tales:Is Barack Obama killing too many bad guys before the U.S. can interrogate them? is an article in FP: http://www.foreignpolicy.com/article..._tell_no_tales

It is a good read and this is a 'taster':
Hold the applause. Obama's escalation of the "Predator War" comes at the very same time he has eliminated the CIA's capability to capture senior terrorist leaders alive and interrogate them for information on new attacks. The Predator has become for President Obama what the cruise missile was to President Bill Clinton -- an easy way to appear like he is taking tough action against terrorists, when he is really shying away from the hard decisions needed to protect the United States.
And ends with:
The fact that Obama's administration no longer does this when it locates senior terrorist leaders today means the president is voluntarily sacrificing intelligence that could protect the American people -- and that the U.S. homeland is at greater risk of a terrorist attack.
I trust that this aspect of CT has been fully debated inside government, although I am sceptical that any leader living in the FATA could be captured for interrogation.

Hypothetical scenario: the Nigerian bomber-to-be is id'd in a Yemeni city, shortly before he starts his journey to what we now know was Detroit. Attempt to capture or strike with high explosive?