JOINT FILING AGREEMENT
Published on December 10, 2007
This Joint Filing Agreement confirms the agreement by and among the undersigned
that the Schedule 13G is filed on behalf of each of the reporting person(s)
identified below
LMM LLC
By___/s/_Nicholas C. Milano____________________________
Nicholas C. Milano, Chief Compliance Officer
Legg Mason Opportunity Trust,
a portfolio of Legg Mason Investment Trust, Inc.
By___/S/_Gregory T. Merz_______________________________
Gregory T. Merz, Vice President
Legg Mason Capital Management, Inc.
By___/S/_Nicholas C. Milano____________________________
Nicholas C. Milano, Chief Compliance Officer
Legg Mason Special Investment Trust, Inc.
By___/s/_Gregory T. Merz_______________________________
Gregory T. Merz, Vice President