Colombia is world's top producer of cocaine, while Mexico is a major transit point.
He has allowed Syria to be used as a transit point for al-Qaeda terrorists en route to Iraq.
It has a bad reputation as a transit point for smuggled drugs, often imported from Kosovo, and for trafficking in illegal migrants.
Poor radar and lack of resources make it an ideal transit point.
BBC: Guatemala's new President, Alvaro Colom, 5 November 2007
We're doing our part to make sure that Malaysia is not a transit point for illicit goods that can be used for nuclear proliferation.
Brazil is said to have become an important transit point for cocaine shipments from Bolivia, Peru and Colombia on route towards Europe and Africa.
The attorney general also cited the U.S. border with Canada as a "transit point" for suspected terrorists and said the administration will increase its surveillance there.
She praises it for offering a transit point for Soviet Jews when other countries held back for fear of attracting the unwelcome attention of pro-Palestinian groups.
Johannesburg resident Masego Maponyane said the city's new lease of life meant that visitors were no longer treating it as simply a transit point on the way to other destinations.
CNN: Urban rebirth: Johannesburg shakes off crime-ridden past
Since the 1980s, when Rio became a transit point for cocaine heading to Europe, the Brazilian state has given over the monopoly of violence in these areas to drug gangs and militias.
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Lebanon is one of a few countries not signatory to the Convention on International Trade in Endangered Species (CITES), making it an easy transit point for wildlife smugglers, and it has few domestic animal-protection laws.
At the same time, U.S. military officials believe the battle for Qusayr shows that Mr. Assad and his allies are trying to solidify their control over a key transit point, which would deal a blow to the opposition.
Even though the value of the Manta air base lies more in the realm of trade (as a cargo transit point) than in the military, the air base's current U.S. military role means the potential impact on Sino-U.S. military relations cannot be ignored.
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Opponents point out that unlike areas in other countries, mass transit is only economic viable in areas with sufficient density and that on a large scale, massive public transit programs have no chance of becoming self-sufficient.
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