The chaos unfolding in Egypt is laying bare a stark fact, Middle East experts say: In the Arab world, American words may not matter, because American deeds, whatever the words, have been pretty consistent. Ever since that March morning 31 years ago, when Anwar el-Sadat reached out to clasp hands with Menachem Begin on the North Lawn of the White House after signing the Camp David peace treaty with Israel, the United States government has viewed the Egyptian government, no matter how flawed or undemocratic, as America’s closest ally in the Arab world…

But, Mr. Malley added, “the more we side with the protesters, the more we’re hurting the existing relationships and appearing to be fickle.” For instance, the Obama administration’s latest distancing of itself from Mr. Mubarak may not go over well. “It’s not clear to me that the protesters will take seriously expressions of solidarity from a country that’s been backing autocratic regimes,” Mr. Malley said…

All of that is why both of those Cairo speeches, for all of their oratorical differences, may not really have mattered at the end of the day, Middle East experts said. American governments need a partner in Egypt who supports the keystone of America’s Middle East policy, and Hosni Mubarak has been that partner for 30 years. “The Israeli-Egyptian peace treaty is the pillar of the structure in the Middle East,” said Edward P. Djerejian, a former American ambassador to Israel and Syria. “If the ’79 agreement goes asunder, everything falls apart. Everything falls apart.”