The Washington Post  had an article titled: ‘U.S. Worried about American scholar detained in Iran‘.

Below is an excerpt from that article:

Tajbakhsh, an Iranian American who holds a doctorate in urban planning from Columbia University, was arrested by Iranian authorities in May 2007, charged with spying and then released after more than four months in Tehran’s Evin prison.

It was not clear why Tajbakhsh was detained last week.

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