During these two centuries, when Europe was a powder keg of social, economic, political and ideological explosions, emigration to foreign parts, not only North and South America, but also South Africa and Australia, provided a safety valve.
The Islamist superpower that nervous people predicted a few years ago will probably never come into being, but the Muslim world will certainly continue to produce localised explosions of ideological wrath and geopolitical envy.This is why the alliance of the democracies needs not only new members but also a new purpose.
And R.B.S.S. has to go on exposing these violations and help prevent the explosion of an ideological timebomb.
In "Adoration," a profound and provocative exploration of cultural inheritance, communications technology and the roots and morality of terrorism, the Canadian filmmaker Atom Egoyan nimbly wades into an ideological minefield without detonating an explosion.
"A policy such as this is probably the number one item that health economists across the ideological spectrum believe is likely to stem the explosion of health-care costs," Christine Romer, the chair of the White House Council of Economic Advisers, said in a recent speech.
"Politically, he has pursued an ideological tightening, because he wants to prevent the kind of explosion in political demands that could come in a relaxed environment.
Does Cruz throw so many bombs out of high-minded ideological purity, or because he's learned that all the disruptive explosions turn heads (and headlines) his way?
While still a graduate student, he appeared on a DVD arguing that intelligent design, an ideological cousin of creationism, is a better explanation than evolution for the Cambrian explosion, a rapid diversification of animal life that occurred about 500 million years ago.
The historical development of ideological polarization between Congress and the president since the late 1960s has been a powerful cause of the explosion of private lawsuits enforcing federal law over the same period.
There was no drama attached to this political shift, no public demonstration nor sudden theatrical explosion, just a characteristic acceptance that the realities of power near the top were quite different from his earlier ideological tendencies.
