Immigration and Customs Enforcement plans to implement nationwide audit of employer I-9s.   ICE announced that it’s drawing up Notices of Inspection to review the I-9 records of 652 employers — names not released yet. In some instances, the notices will include subpoenas for records such as quarterly wage reports, EINs, business licenses, correspondence from Social Security Administration regarding no-match letters, and payroll data.  Employers whose I-9-related records don’t pass muster with ICE will then receive Notices of Intent to Fine. ICE officials also said the audit is just a “first step,” so employers probably can expect more audits and inspections.