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CANADA

Border screening creates security alert

OTTAWA — Canada’s flawed visa system may be letting in terrorists, mobsters or travelers carrying deadly diseases, officials warned Tuesday.

In a report to parliament, Auditor-General John Wiersema said immigration and border officials “need to do a much better job of managing the health, safety and security risks associated with determining admissibility before issuing a visa.”

He cited shortcomings in the training of visa officers and out-of-date indicators used to identify high-risk applicants as the main problems.

Canada is one of few nations actively encouraging immigration to boost its population of 34.5 million.

BRAZIL

Officials say oil slick has shrunk significantly

SAO PAULO — The size of the oil slick at a well operated by U.S.-based Chevron Corp. off the coast of Rio de Janeiro state is more than 80 percent smaller than it was four days ago, said Brazil’s National Petroleum Agency Tuesday.

The agency said in a statement that the slick at the water’s surface covered 0.78 square miles, compared to the 4.63 square miles registered on Nov. 18.

The agency also said the oil slick continues moving away from Brazil’s coastline.

Despite the announcement, Rio de Janeiro state’s Environment Secretary Carlos Minc told reporters that in two weeks to a month the oil could reach beaches west of the city of Rio that are popular with tourists.

EUROPEAN UNION

University hit by new climate leak ahead of talks

LONDON — The British university whose stolen emails caused a global climate science controversy in 2009 says those behind the breach have apparently released a second and potentially far larger batch of old messages.

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