Nov 23 (Reuters) - Ambac Assurance:
* Moody's revises Ambac Assurance rating outlook to developing
* Moody's affirms Ambac Financial Group C senior debt rating COPYRIGHT Copyright Thomson Reuters 2010. All rights reserved. The copying, republication or redistribution of Reuters News Content, including by framing or similar means, is expressly prohibited without the prior written consent of Thomson Reuters.
* Moody's revises Ambac Assurance rating outlook to developing
* Moody's affirms Ambac Financial Group C senior debt rating COPYRIGHT Copyright Thomson Reuters 2010. All rights reserved. The copying, republication or redistribution of Reuters News Content, including by framing or similar means, is expressly prohibited without the prior written consent of Thomson Reuters.
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