My wife was asking this question this afternoon.
I also wonder
I had that same question earlier.
I recall how sad it was to see those balloons just afer the blast, thinking some child had to let them go.
:(
Freepers Cap Huff and MHGinTN posted discussion and videos of the balloon lady and balloons [post-detonation] on the thread below.
First balloon pack: http://www.youtube.com/watch?v=kxq6KcFy3qk minute 1:20 rising from far left of NBC screenshot
Second balloon pack: http://www.youtube.com/watch?v=kNCh5bZAUZs watch against the light colored building in the distance as smoke from #2 rises
http://www.freerepublic.com/focus/news/3013349/posts?page=33#33
Another video of balloon lady and the 2 bombers in post 19
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Penelopsire: Will you please ping to this thread in the event other Freepers can locate video, photos, or discussion of this?