<p>Perini Corp., a Massachusetts construction company partially owned by the investment firm of California Sen. Dianne Feinstein's husband, landed a $500 million contract Friday to repair southern Iraq's electricity grid.</p>
<p>Perini is one of several American firms mobilized to restore Iraq's electricity under a series of contracts issued by the Pentagon this week. On Friday, Washington Group International won a $500 million contract to restore power in northern Iraq.</p>