The West Bank frontier exists only on maps, and the lack of a physical barrier has allowed Palestinian suicide bombers to slip into Israel for attacks.In the past 30 months more than 80 Palestinian suicide bombers have come from the West Bank and none from Gaza, which is fenced off.
He has measured the risks from volatility in the market and concludes that "no efficient frontier exists out to 20 years" to be able to predict that the returns on stocks adjusted for volatility and risk, can turn in steady positive returns in a period of deflation.
And there is some pleasure in the realization that despite all the gadgetry, frontiers still exist.
Who wants to go back to the old times, to the customs frontiers that existed before 1954?
A Polish frontier settlement existed there from the 6th to the 10th century; a fortress was then built to protect the town from Bohemian forces.
Instead, Mr. Assad was obstinate in his long-held view that there must be a full Israeli withdrawal to the Israeli-Syrian frontier that existed on June 4 , 1967 before the Arab-Israeli war of that year.
Some Lebanese politicians have said that they will not accept an Israeli withdrawal to the frontier that existed before the 1978 invasion, but only to what they call "the internationally recognized border".
Many residents of the area in the heart of the Amazon, where Colombia, Peru and Brazil share a border, carry the identity cards of all three countries and use their currencies interchangeably, as if the frontier did not exist.
The gunfight and its aftermath stand for the change overcoming America as the Western frontier ceased to exist, between a modern nation that was rapidly industrializing, pushing out what had been a largely agrarian economy.
New frontiers for the technology exist in processing massive sulfides, silicate-locked minerals and in the more distant future in-situ leaching.
