<p>Sacramento -- At the dawn of California's ill-fated experiment with electricity deregulation, a brilliant Bay Area electrical engineer working for Perot Systems warned energy officials and consumer groups that the state's new power market could be easily exploited.</p>
<p>As attention swirls in Sacramento about a possible appearance by former presidential candidate Ross Perot before a legislative panel, state Senate investigators looking into Perot Systems' role in the California energy crisis say they are eager to question Paul Gribik.</p>