“Chances are there would have been some degree of opposition sooner or later had anyone suggested building a 10-story, 175-ton nickel-surfaced teardrop suspended within a bronze-clad tower on a pier across the water from the World Trade Center site as a 9/11 memorial. But when the artist turns out to be Zurab Tsereteli, a Russian sculptor whose works — like a 300-foot statue of Columbus or a 165-foot Peter the Great — are so controversial that opponents once threatened to wire Peter with explosives and blow him up, another level of tumult is pretty much guaranteed.”