It was my sense that Hillary got booed because her comment came off as arrogant, that somehow the people are not entitled to honesty and forthrightness from their candidates.

I am Indian and have travelled extensively and spoken with people across  Europe/South east Asia and China  .I also count among my friends a number of Americans.
I can tell you one thing, the one reason American politicians (as distinct from the american public) are so unpopular today is because they have arrogantly  assumed that they  have a monopoly on righteousness and appropriate the right to  a unilateral  attack on a sovereign country (based on " actionable intelligence"of cource (whatever that means!)
History is a witness to the fact that this  "actionable intelligence " has most often been incorrect with Iraq being only the most recent example. In any case there are laws that govern international relationships .
Consider this. For decades members of  number of organisations designated by India as terrorist organisations have been granted politcal asylum in the United States(/Canada/Uk and a few  other european countries) as politcal refugees . India has information that a number of these people are personally responsible for bomb blasts in India
while others are responsible for raising funds for these organisations. India has been fighting a number of extraditon cases with the US (and with these other countries ) for years with no progress.
More than a 100,000 Indians have died in these terrorist attacks (Kashmir,Punjab mainly)
Would it then be ok for India  to take matters into her own hands and attack the US.
I DON'T THINK SO!! it is a recipe for disaster!.

Do unto your brothers as you would have  them do unto  you!

One other point.
When the Indian Government decided to go nuclear I was really upset as I am very anti war . But the day America decided to go against the UN and unilaterally attacked Iraq I was glad that we had nuclear weapons  .I feel safer  that  another  country (and here read the US as it is the only country consistently doing this) would be forced to think really hard before they unilaterally attacked my country because they disagreed with the way we were approaching an issue.I am ashamed that i feel this way but l am glad we have a nuclear deterrent.
This US foreign policy and the insecurity it generates   is probably the biggest reason fuelling the race for Nuclear weapons in the Middle East (read Iran).

Obama WAS VERY IRESPONSIBLE in what he said abt Pakistan.
Also considering his main theme is Change he's not  obviously terribly original where this is concerned (ref Joejoejoe and history). And quite disingenuous when he projects himself as being especially so in this case  
It is also quite disturbing that this is actually gaining him points with an audience I would consider to be more rational ,informed and sophiticated where such rabble rousing is concerned.

Obama:

"I understand that President Musharraf has his own challenges. But let me make this clear. There are terrorists holed up in those mountains who murdered 3,000 Americans. They are plotting to strike again.  If we have actionable intelligence about high-value terrorist targets and President Musharraf won't act, we will."

AUMF, 9/18/01, passed 98-0 in the Senate, 420-1 in the House:

Section 2 - Authorization For Use of United States Armed Forces

(a) IN GENERAL- That the President is authorized to use all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, or harbored such organizations or persons, in order to prevent any future acts of international terrorism against the United States by such nations, organizations or persons.