Maybe I'm spoiled, as we're Canadian, and mothers generally get more time off here. But I agree with Khanada and Like_02. I don't think babies belong at the workplace, regardless of whether the mother chooses to feed them in public or not. What do the babies do the rest of teh time? Doesn't that interefere with the mother's/other people's work?
I generally don't care if mothers breastfeed in public. It DOES make it awkward, if say, you're sitting directly across from them (where do you look?), but if I see a mother breastfeeding her child in a park, I don't mind.
If she was a member of parliament and actually had to feed in the middle of work like that, maybe she wasn't ready to return to work yet.