SAN FRANCISCO, March 21 (Reuters) - Some California voters and activist groups sued the state's top election official on Tuesday in an effort to reverse the certification of certain electronic voting machines made by Diebold Inc. (DBD.N: Quote, Profile, Research).

The suit, filed in Superior Court in San Francisco, is the latest salvo in an ongoing dispute about the security of Diebold electronic voting machines, focused on Diebold's TSX touch-screen system.

¶ Wednesday, March 22, 2006