"Even peaceful ones can quickly become unruly and a foreigner could become a target of harassment or worse, " the state department said.
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Secretary of State Theresa Villiers has said Northern Ireland was being "held to ransom by protesters", and she called for an end to all street demonstrations over flags, even peaceful ones.
The commercial quartz enterprise has even paved peaceful paths between Israel and other markets in the often politically harsh Middle East.
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Boston shows that the terror threat continues to be real, and that the price of even a peaceful marathon is constant vigilance.
"I'm confident we will have an even more peaceful election this December because most Ghanaians I have spoken to say they enjoy the atmosphere and will urge the politicians to keep it that way", he said.
This history is celebrated and preserved, but it is a stark contrast to the peaceful, even staid, community of Lexington today.
But experts say, even if things remain peaceful, how the country's new constitution takes shape may prove critical to its future.
Even in Namibia, peaceful now for a decade, the ranchers--most of them white--nervously watch as the government restricts their ownership of rifles and diesel fuel and wonder if life wouldn't be so bad in Germany or the United States.
"If there is a succession, even if it is a peaceful succession, then that creates more uncertainty, " she said.
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"Qatari authorities must ensure that legal proceedings against al-Ajami are carried out in accordance with international fair trial standards and that any charges which relate solely to peaceful criticism, even if it is of the highest authority in the country, are dropped, " said Philip Luther, Amnesty's Middle East and North Africa programme director.
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It's smooth and peaceful... even when you're hurtling along at speeds high enough to put you in jail.
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The program that Rice has come to the region to advance does not even have the benefit of a peaceful facade.
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This is the ultimate test of economic diplomacy and arguments about the peace dividend: does trade, once established politically, have the power to sustain itself and to maintain peaceful, open borders even as political environments change?
Some want action, even if it might mean abandoning their peaceful Buddhist way.
But an enemy would hardly view Japanese mine-sweeping, even by non-combatants, as peaceful and could well respond with direct attacks on Japanese forces.
The idea is that children can heal through participation in art and music and even, very simply, through the peaceful passage of time.
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What would America and Britain not give today for the promise of a peaceful and well governed Iraq for even four years?
India is an intense experience for even the most seasoned traveler, and the peaceful vibe of Nadesar Palace, a 28-acre, 10-room property now managed by the Taj Group, provides a lush counterpoint to stark reality.
Trade is a fundamentally peaceful undertaking that unites people who might even dislike one another.
The cocaine trade, al-Qaeda, the neglect of the north, half-hearted attempts to integrate Tuareg rebels into the military, and a breathtaking amount of corruption - all these issues had been glossed over or tucked behind the more promising headlines about yet another peaceful election, or the discovery of even more mineral wealth buried beneath the Saharan sands.
Even when there are hopeful signs springing up everywhere, a peaceful Myanmar can never be taken for granted.
Let me be clear, America respects the right of all peaceful and law-abiding voices to be heard, even if we disagree with them.
The use of tear gas shocked a normally peaceful Slovenia, which has never seen such violence, even under Yugoslavia's relatively mild brand of communism.
He summoned the army chief, along with the most prominent advocate of reform, for an even-handed dressing-down, paving the way for a peaceful restoration of democracy.
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Moreover, China and Russia made it plain before the launch they had no interest in stricter sanctions -- even arguing with a straight face that Pyongyang was only interested in peaceful satellite communications.
Some of them have abused nuclear technology for non-peaceful ends including the production of nuclear bombs, and some even have a bleak record of using them against humanity.
This approach must begin by fully recognizing the fact that pursuing a peaceful nuclear program is widely supported by the Iranian people, even by those who regard the election as invalid.
Then, he moved to defend Iran's nuclear program, which Ortega not only supports on the grounds of "being used for peaceful purposes" but also stated that he sees nothing wrong even if Iran wants to have a nuclear program for military purposes.
But many fear that more fighting is to come, even if Messrs Kabila and Bemba do agree to try to keep their rivalry peaceful.
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