For the past 17 years, Lopez has worked as a kidnap and ransom negotiator, a job in which his own safety - as well as that of the hostages - depends on his anonymity.

在过去的17年，洛佩兹的工作是一名绑架和赎金谈判人，这份工作，他自己的安全，人质的安全都取决于他的隐姓埋名。

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Kidnap gangs ask for ransom to be paid by text messages listing a hundred or more Numbers of high-value phone CARDS.

绑架分子通过发送写有一百或者更多的高值电话卡的短信来索要赎金。

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Risk premiums for kidnap for ransom insurance or terrorism insurance will be reviewed across the north Africa region in light of the attacks, says Mr Robson.

CNN: Oil and gas industry reviews security

Malaysia's Sabah state shares a sea border with the southern Philippines, which is home to a number of Islamic militant and kidnap-for ransom groups.

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Kidnap-for-ransom groups are prevalent in the southern Philippines, according to the BBC's Kate McGeown in Manila.

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