CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We have issued our report dated March 24, 2008, with respect to the consolidated financial statements of Haverstick Consulting, Inc. and subsidiaries contained in the Kratos Defense & Security Solutions, Inc.'s Amendment No. 2 to the Registration Statement on Form S-4 and Proxy Statement dated May 21, 2008. We consent to the use of the aforementioned report in the Registration Statement and Proxy Statement, and to the use of our name as it appears under the caption "Experts".
| /s/ Grant Thornton LLP Grant Thornton LLP |
Irvine, California
May 21, 2008