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Agency Sues Lucent Over Pension Policy  SAN FRANCISCO (Reuters) - A federal civil rights agency  sued Lucent Technologies Inc.&lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=LU.N target=/stocks/quickinfo/fullquote"&gt;LU.N&lt;/A&gt; on Thursday, charging the  telecom equipment maker had discriminated in its pension policy  against women workers who took pregnancy leave. 