This week, Iranian-backed Houthi rebels seized control of the Yemeni government, heretofore pro-American. In September, they overran Sanaa, the capital. On Tuesday, they seized the presidential palace. On Thursday, they forced the president to resign.

This is a formidable enemy. To dismiss it as a bunch of 'cowards' perpetuating 'senseless acts of violence' is complacent nonsense. People willing to kill thousands of innocents while they kill themselves are not cowards. They are deadly vicious warriors and need to be treated as such.

Every two years the American politics industry fills the airwaves with the most virulent, scurrilous, wall-to-wall character assassination of nearly every political practitioner in the country - and then declares itself puzzled that America has lost trust in its politicians.

Hawks favor war on the grounds that Saddam Hussein is reckless, tyrannical and instinctively aggressive, and that if he comes into possession of nuclear weapons in addition to the weapons of mass destruction he already has, he is likely to use them or share them with terrorists. The threat of mass death on a scale never before seen residing in the hands of an unstable madman is intolerable – and must be preempted.

In the course of his presidency, Obama has gone from an almost magical charismatic figure to an ordinary politician. Ordinary. Average.

History has blessed us with all the freedom and advantages of multiculturalism. But it has also blessed us, because of the accident of our origins, with the linguistic unity that brings a critically needed cohesion to a nation as diverse, multiracial and multiethnic as America. Why gratuitously throw away that priceless asset? How mindless to call the desire to retain it 'racist.

The conservative idea is not that government has no role. You might have argued that in the thirties when conservatives opposed the New Deal.