I am no fan of obama, I don't blame him for this and I think its screwed up this happened on his watch, he got sideswiped. Its also embarrassing for us all.
That being said, nor do I wish us to look foolish inept and conversations better left secret need to be left secret.
Putting out dirty laundry, that provide road marks to negotiation points for one thing, relations amongst folks that already suspect they hold each other in contempt, and the fact that some of this will effect the way we interact with one another. A lot was made of bushs stepping on Europe etc. well, remarks I have head that are in wiki are not flattering to our allies to say the least and ot flattering to us....spying on foreign leaders and plenipotentiary's...really?
Will it have long term damage?Ii don't know, maybe not , a lot of this is a given, buts its always better left unsaid, like the digs you want to take at seldom seen family members at holiday dinners

.
In addition how much is lost when our people don't feel safe using 'cable' traffic to make observations to one another on issues and personalities that may help us craft negotiation points etc.?
As far as lives? we don't know and never will I don't think.You can play suppsoe though, suppose a name of one of the opposition leader(s) in contact with us, unknown to Iranian intelligence comes out? What do you think his/her life is worth?
I will say that in all likely hood the leaks of the wire taps and swift prgm. probably did, or certainly will if it has not already.