EXHIBIT 3
-------------------------------------------------------------------------------- EXHIBIT 3 AGREEMENT The undersigned persons hereby agree that reports on Schedule 13D, and amendments thereto, may be filed in a single statement on behalf of all such persons. Dated: June 26, 1998 /s/ Xxxxxx X. Xxxxxxx --------------------------- Xxxxxx X. Xxxxxxx BERKSHIRE HATHAWAY INC. By: /s/ Xxxxxx X. Xxxxxxx ------------------------ Xxxxxx X. Xxxxxxx Chairman of the Board