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We may not have the ability to repurchase the debentures in cash upon the occurrence of a fundamental change, or to pay cash upon the conversion of debentures, as required by the indenture governing the Convertible Debentures.

Holders of our outstanding Convertible Debentures will have the right to require us to repurchase the debentures upon the occurrence of a fundamental change as defined in the Indenture dated as of August 20, 2007 (the “Indenture”) between the Company and U.S. Bank National Association, as Trustee. Although we currently intend to settle the principal amount of the Convertible Debentures in cash as required under the Indenture, we may not have sufficient funds to repurchase the Convertible Debentures in cash or have the ability to arrange necessary financing on acceptable terms or at all. In addition, upon conversion of the Convertible Debentures, we will be required to make cash payments to the holders of the Convertible Debentures equal to the lesser of the principal amount of the Convertible Debentures being converted and the conversion value (as defined in the Indenture) of those debentures. Such payments could be significant, and we may not have sufficient funds to make them at such time.

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A fundamental change may also constitute an event of default or prepayment under, or result in the acceleration of the maturity of, our then-existing indebtedness. Our ability to repurchase the debentures in cash or make any other required payments may be limited by law or the terms of other agreements relating to our indebtedness outstanding at the time. Our failure to repurchase the Convertible Debentures or pay cash in respect of conversions when required would result in an event of default with respect to the Convertible Debentures.

While we currently have the intent and ability to settle the principal in cash, if we conclude that we no longer have the ability, in the future, we will be required to change our accounting policy for earnings per share from the treasury stock method to the if-converted method.

We may not have the ability to repurchase the debentures in cash upon the occurrence of a fundamental change, or to pay cash upon the conversion of debentures, as required by the indenture governing the 3.25% junior subordinated convertible debentures.

Holders of our outstanding 3.25% junior subordinated convertible debentures will have the right to require us to repurchase the debentures upon the occurrence of a fundamental change as defined in the Indenture dated as of August 20, 2007 (the “Indenture”). Although we currently have the intent and the ability to settle the principal amount of the convertible debentures in cash as required under the Indenture, we may not have sufficient funds to repurchase the debentures in cash or to make the required repayment at such time or have the ability to arrange necessary financing on acceptable terms. In addition, upon conversion of the debentures, we will be required to make cash payments to the holders of the debentures equal to the lesser of the principal amount of the debentures being converted and the conversion value of those debentures. Such payments could be significant, and we may not have sufficient funds to make them at such time.

A fundamental change may also constitute an event of default or prepayment under, or result in the acceleration of the maturity of, our then-existing indebtedness. Our ability to repurchase the debentures in cash or make any other required payments may be limited by law or the terms of other agreements relating to our indebtedness outstanding at the time. Our failure to repurchase the debentures or pay cash in respect of conversions when required would result in an event of default with respect to the debentures.

While we currently have the intent and ability to settle the principal in cash, if we conclude that we no longer have the ability, in the future, we will be required to change our accounting policy for earnings per share from the treasury stock method to the if-converted method.

We may not have the ability to repurchase the debentures in cash upon the occurrence of a fundamental change, or to pay cash upon the conversion of debentures, as required by the indenture governing the 3.25% junior subordinated convertible debentures.

Holders of our outstanding 3.25% junior subordinated convertible debentures will have the right to require us to repurchase the debentures upon the occurrence of a fundamental change as defined in the Indenture dated as of August 20, 2007 (the “Indenture”). Although we currently have the intent and the ability to settle the principal amount of the convertible debentures in cash as required under the Indenture, we may not have sufficient funds to repurchase the debentures in cash or to make the required repayment at such time or have the ability to arrange necessary financing on acceptable terms. In addition, upon conversion of the debentures, we will be required to make cash payments to the holders of the debentures equal to the lesser of the principal amount of the debentures being converted and the conversion value of those debentures. Such payments could be significant, and we may not have sufficient funds to make them at such time.

A fundamental change may also constitute an event of default or prepayment under, or result in the acceleration of the maturity of, our then-existing indebtedness. Our ability to repurchase the debentures in cash or make any other required payments may be limited by law or the terms of other agreements relating to our indebtedness outstanding at the time. Our failure to repurchase the debentures or pay cash in respect of conversions when required would result in an event of default with respect to the debentures.

While we currently have the intent and ability to settle the principal in cash, if we conclude that we no longer have the ability, in the future, we will be required to change our accounting policy for earnings per share from the treasury stock method to the if-converted method.

We may not have the ability to repurchase the debentures in cash upon the occurrence of a fundamental change, or to pay cash upon the conversion of debentures, as required by the indenture governing the 3.25% junior subordinated convertible debentures.

Holders of our outstanding 3.25% junior convertible subordinated debentures will have the right to require us to repurchase the debentures upon the occurrence of a fundamental change. Although we currently have the

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intent and the ability to settle the principal amount of the convertible debentures in cash, we may not have sufficient funds to repurchase the debentures in cash or to make the required repayment at such time or have the ability to arrange necessary financing on acceptable terms. In addition, upon conversion of the debentures, we will be required to make cash payments to the holders of the debentures equal to the lesser of the principal amount of the debentures being converted and the conversion value of those debentures. Such payments could be significant, and we may not have sufficient funds to make them at such time.

A fundamental change may also constitute an event of default or prepayment under, or result in the acceleration of the maturity of, our then-existing indebtedness. Our ability to repurchase the debentures in cash or make any other required payments may be limited by law or the terms of other agreements relating to our indebtedness outstanding at the time. Our failure to repurchase the debentures or pay cash in respect of conversions when required would result in an event of default with respect to the debentures.