Here's the question no one is asking as 2012 ends, especially given the effusive public support the Obama administration offered Israel in its recent conflict with Hamas in Gaza: Will 2013 be a year of confrontation between Washington and Jerusalem? It's on no one's agenda for the New Year. But it could happen anyway.

It's true that the Israeli-Palestinian peace process appears dead in the water. No matter how much Barack Obama might have wanted that prize, Israeli Prime Minister Benjamin Netanyahu has rebuffed him at every turn. The president appears to have taken it on the chin, offering more than the usual support for Israel and in return getting kloom (as they say in Hebrew). Nothing at all.

However, the operative word here is "appears." In foreign affairs what you see -- a show carefully scripted for political purposes -- often bears little relation to what you actually get.

While the Obama administration has acceded to the imagery of knee-jerk support for whatever Israel does, no matter how outrageous, behind the scenes its policies are beginning to look far less predictable. In fact, unlikely as it may seem, a showdown could be brewing between the two countries. If so, the outcome will depend on a complicated interplay between private diplomacy and public theater.

The latest well-masked U.S. intervention came in the brief November war between Israel and Gaza. It began when Israel assassinated a top Hamas leader deeply involved in secret truce talks between the supposedly non-communicating foes.

Destructive as it was, the war proved brief indeed for one reason: the American president quickly stepped in. Publicly, he couldn't have sided more wholeheartedly with Israel. (It felt as if Mitt Romney had won, not lost, the election.) In private, though, as he pressured Egyptian President Morsi to force Hamas to a truce, he reportedly pushed Israeli Prime Minister Benjamin Netanyahu just as hard.

The truce agreement even had an Obama-required twist. It forced Israel to continue negotiating seriously with Hamas about easing the blockade that, combined with repeated destructive Israeli strikes against the Palestinian infrastructure, has plunged Gaza so deep into poverty and misery. Talks on the blockade are reportedly proceeding, though wrapped in the deepest secrecy. It's hard to imagine Israel upholding the truce and entering into a real dialogue to ease the blockade without significant pressure from Washington.

Washington is also deeply involved in the tensions between Israel and the Palestinian Authority (P.A.) in the West Bank. When P.A. president Mahmoud Abbas asked the U.N. General Assembly to accord Palestine observer status, Israel publicly denounced any such U.N. resolution. The Obama administration wanted to offer a far softer resolution of its own with Israeli approval. The Israelis gave in and sent a top official to Washington to negotiate the language.

In the end, the U.S. had no success; the stronger resolution passed overwhelmingly. Israel promptly retaliated by announcing that it would build 3,000 additional housing units in various settlements on the West Bank. To make the response stronger, the Israeli government indicated that it would also make "preliminary zoning and planning preparations" for new Israeli settlements in the most contentious area of the West Bank, known as E1. Settlements there would virtually bisect the West Bank and complete a Jewish encirclement of Jerusalem, ending any hope for a two-state solution.

Washington Can Lay Down the Law

There is a history of the Israeli government publicly announcing settlement expansions for symbolic political effect, and then, under U.S. pressure, pursuing only limited construction or none at all. Some observers suspect Netanyahu is now playing the same game.

As the New York Times reported, "For years, American and European officials have told the Israelis that E1 is a red line. The leaked, somewhat vague, announcement... is a potent threat that may well, in the end, not be carried out because the Israeli government worries about its consequences." Prominent Israeli columnist Shimon Shiffer was more certain. "Netanyahu," he wrote, "does not plan to change the policies of his predecessors, who assured the Americans Israel would not build even one house in problematic areas" like E1.