From the arguments that rage over the Islamic veil and the bikini, a battle between the conservatives and liberal secular forces, you would think it can be summed up as: nudity is liberation and covering up is oppression from the secular faction. A Tunisian woman took the bait, and from the birth place of the Arab-Spring she displayed her breasts, with "My body is mine, not somebody's honour" written across it, clearly aimed at the conservative faction of society. This is supposed to contribute towards the advancement for women’s rights, because the argument goes, it shows that she has control over her body, nobody (men in particular) is forcing her to cover up. One would assume the protest in a different form would take place, if the women were forced to walk around topless in Tunisia in the first place.
On that note, women who chose to wear the Hijab (head scarf) under the previous regime were treated awfully, and in countries like Turkey the HIjab was banned in public life. The same argument of women having control over their bodies and having the ability to exercise their choice is applicable here, but it did not lead to the feminists screaming; hence, why the selectivity? Ironically, it seems the feminists are pandering to the male urges through the back door, as they are only intervening when women want to strip!