On Friday, the House of Representatives' watchdog committee corralled former Citigroup CEO Charles Prince, former Merrill Lynch CEO Stanley O'Neal and Countrywide Financial CEO Angelo Mozilo to find out whether executives should be compensated handsomely when their companies fare poorly.

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Global media watchdog the Committee to Protect Journalists (CPJ) said Mr Daou's arrest was "another example of Malian security agents acting outside the law in trying to harass journalists".

BBC: Mali media strike over editor Boukary Daou's arrest

Mr Byers has been referred to the Standards and Privileges Committee, Parliament's ethical watchdog.

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