I think too many "blessings" or invocations are taken as an oppurtunity to present one's own material from a furnished pulpit/podium to a captive audience.Nevertheless,I think that a country or nation that does not publlicly acknowledge a dependence,a gratefulness and a reliance on God's justice and mercy is destined for the dustbin.
So what do you think about just saying the Our Father,everyone will know in advance what's coming;those who don't like it can block it,remain in their own thoughts or substitute their own prayer.