Presence

Gil Student posted what appears to be a fairly comprehensive and well-researched list of various rabbis opinions regarding saying Hallel on Yom Ha-Atzmaut.

People tend to get worked up over this issue, while, in my opinion, a much more important issue is overlooked. If I had my druthers, I'd say Hallel without a bracha after davening; but I don't always have said druthers. A few years back, I happened to daven Shacharis at the Agudah on 5 Iyar. So I said Tachnun. Other times, I've been in shuls that say Hallel in the middle of davening. So I say Hallel in the middle of davening, along with everyone else. Every year I see someone make a big production over saying this, or not saying that, or simply, in a less-than-inconspicuous fashion, walking out of the shul in a huff at a certain point. On a weekly basis, I get to watch people assert their definitive approach to Zionism (or lack thereof) by standing up for all, part of or none of the prayers for the welfare of the US government, State of Israel and Israeli soldiers. In my opinion, this is all ridiculous. Making your little point about your personal beliefs is not more important than being a part of the tzibbur. If you don't like how something is done where you daven, either daven some place else, or go along for the ride, but please spare us the pomp and circumstance.

That's just my opinion; take it or leave it.