But although adding an extra identity check to such financial transactions improves security, doesn't it also add complexity and inconvenience?

ECONOMIST: Security

Mr. Merah was arrested by Afghan police during a routine identity check in Kandahar and put on a flight to Europe, prosecutors say.

WSJ: French Killer Mohamed Merah's Path to Jihadist Rampage

Mejia already was a little behind after his arrival to camp from the Dominican Republic was delayed because his visa was flagged for an apparent random identity check.

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