"Who said anything about foreign operations or foreign terrorists?"
Was I supposed to assume that "somewhere in the world" meant something different?
"I asked in my previous comment, "Do you further, or alternatively deny that alerting those people to the fact that the FBI knows about them would harm the FBI's ability to stop them from harming people in the US?" Can you answer this?"
Sure: yes. Yes, the FBI will be impeded when they are held accountable for their actions and when their actions are not secret. This is no different from warrant requirements, Miranda rights, the second amendment, the right to an attorney, etc. A democratic society where civil rights are valued gives up some law enforcement power in order to preserve its democracy and civil rights.
"I have another question: do you believe your/the public's judgement is going to be the best method by which to determine the efficacy of a counter-terrorism strategy, even assuming the program can be communicated in such a way so as to not compromise it's ability to be effective?"
When you are asking to use my tax dollars to fight terrorism, you had better be able to convince me that (a) there are terrorists to fight and (b) that you are effective at doing so. Otherwise I want tax money spent building better schools, paying for universal healthcare, paying for scientific research, paying for competent public defenders, etc. Sorry, but you cannot scare me with hypothetical terrorists.
Since you are a fan of asking pedantic questions, I have one for you: do you believe that the war on terror will ever end, or do you believe that it will always be necessary to violate basic civil rights in the name of fighting terrorists?