I'm all for heightened security (when it's warranted) -- that said, dh is a professional photographer and he carries the FAA guidelines about photographic equipment/film with him when we fly. He's entitled to a hand-check of his film instead of the xraying process, and he demands it. If they refuse, he hands them the FAA statement about it.
I think it's wise when traveling to download and carry the official restriction information with oneself, just in case. I plan on being searched when I fly - dh is always searched (mid-30's male who's almost always unshaven, casual clothing, dark bags) -- anymore, he just wears his Merels (sp?) since they slip on and off and it makes the searches go more quickly. DH's nearly 90 year old grandma is always searched, too. I think that's to prove they're not profiling.

Whatever. When I was about 6 months pregnant with Ina, we were traveling and the TSA agent stopped dh and me both and said that he needed to search "one of us" and gave us a choice. I think he was supposed to search me but figured I would not be comfortable with it. Very kind of him.
I just have to wonder (and always have) -- WHAT about the packed luggage, the non-carryon? Seriously. Couldn't there be liquid explosives in THERE too? And couldn't there be a way to detonate them from on the plane? I always thought the "no needles/knitting needles" ban was silly, too, since they didn't ban pencils and pens (just as likely to become a deadly weapon in the end, KWIM?).

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Anyway - I'd imagine that with forewarning, a bf mom (even one pumping and separate from her dc) would be able to figure out a way to bring a cup and "sample" from each of her little pumped baggies if she was requested to do so, without contaminating the milk. The problem of course would be if she'd managed to freeze some/all of it. Would they make her thaw it to prove what it was?
But yes, how simple it would be/is to just bf on the plane and not worry about the restrictions at all. I saw a show about Heathrow in London last spring, where a mom was told she couldn't bring her baby's formula overseas, and the mom was terribly upset, and of course my first thought was, "Well, if you were bf, you could take your "baby milk" anywhere you wanted, because it's *attached*"....