Christians are being murdered throughout the Arab Mideast and in Muslim lands across the bloody crescent and into Asia. Nearly a thousand have been murdered in Iraq. Tens of thousands live a precarious existence as refugees in riot-torn Syria. When Bashar al-Assad falls, these exiled Christians fear for their fate.

In Egypt, massive demonstrations in Tahrir Square toppled longtime dictator Hosni Mubarak. The media welcomed the dawning of democracy and human rights.

They averted their eyes from rapes and from maddened mobs demanding the Jews' blood. Which Jews? The Jews of Alexandria have long since been driven out. Now, the Coptic Christians are the ones being killed by these purple-fingered new voters.

In the French revolution, such scenes were called the carmagnole. Dickens unforgettably portrayed the blood-drunk mobs as they danced through the streets of Paris.

Prime Minister Margaret Thatcher summed up that revolution she visited Paris for a G-7 Summit in 1989. It was the Bicentenaire of that momentous uprising. She said it had yielded only "a lot of headless bodies -- and a tyrant."

What fruits are we seeing from this Mideast carmagnole? Gaddafi has been dispatched, by a mob. He was shot after being beaten and sodomized. We would not shed tears for him. He murdered hundreds of Americans aboard PanAm 103 over Lockerbie, Scotland. One of his victims, Dick Cawley, was a college friend of mine. Those Americans were headed home for Christmas in 1988.

But what kind of regime takes Gaddafi's place? Libya's liberators refuse to give up the convicted Lockerbie bomber. You don't have to drink the Mediterranean to know it's salty.

Candidate Barack Obama pledged to be a "transformational" president, as he said Ronald Reagan was and Bill Clinton was not. He took some criticism in the Democratic primaries for saying that, but he stood his ground. He also stood his ground when criticized by rival Hillary Clinton for saying that, if elected president, he would approach the mullahs who rule Iran with an open hand, not a clenched fist. No preconditions for talks, he said.

Upon entering the office, President Obama immediately went to London. There, in an act unprecedented in American history, he bowed low before the worst of desert despots, King Abdullah of Saudi Arabia. In Saudi Arabia, anyone who converts to Christianity is publicly beheaded and his headless body is crucified. That's the only way a cross can be displayed there.

Not satisfied, President Obama went to Egypt in June, 2009. It was then held in Mubarak's slipping grasp. Mr. Obama chose to deliver a major address to what he termed "the Muslim world." His speech was given at Cairo University, a well-known nest of Muslim Brotherhood activity.

The Muslim Brotherhood had assassinated Mubarak's predecessor, Anwar Sadat, in broad daylight in 1981. The selection of such a platform could hardly have been an accident. It was part of this administration's "reaching out." It was an overture to some of the deadliest elements in the ever-turbulent Mideast.

Now, President Obama is defiant. "Ask Osama bin Laden whether I engage in appeasement," he snapped at critics of his administration. That would seem an unanswerable response.

Mr. Obama did indeed kill Osama and Anwar al Awlaki, the American-born imam who advocated mass murder here. Surely, the president deserves credit from his harshest critics for these justifiable and necessary executive actions.

But, yes, Mr. President, you are engaged in appeasement. You have put the Israelis in the greatest jeopardy with your talk of returning to the pre-1967 borders.

You have frittered away three years with your feckless, fruitless engagement of the murderous mullahs in Tehran. You have helped to oust pro-Western dictators in Tunisia and Egypt, with little heed to the kinds of regimes that would replace them. You were offering foreign aid to Gaddafi weeks before you "led from behind" in ousting him.

Worse than any of this, of course, is your administration's abandonment of the Christians. They are paying with their lives for your weakness. Copts, Assyrian Christians, Chaldean Christians, Baptists, Catholics -- it hardly matters what kind of Christian you are. If you proclaim Jesus, you are a marked man.

Terrorist groups like the Muslim Brotherhood see you bowing and abasing yourself. They hear you when you say the sound of the muezzin's cry -- calling the Muslims to prayer in the mosque -- is "one of the sweetest sounds on earth."  Few Christians who lives within the sound of that call are likely to agree with you, Mr. President.  For that muezzin's call all too often brings fanatics to mosques where they are harangued by "clerics" and incited to shed Christian blood.

Mr. President, you have stood by in the face of this Mideast carmagnole. You have helped sow the wind. The Christians are reaping the whirlwind. They are being martyred daily. And their blood cries out. They are being martyred daily. And their blood cries out.

Robert Morrison is a Senior Fellow at Family Research Council in Washington, D.C.