City (Philadelphia) clarifies policy on (Illegal) immigrantsBy Thomas GinsbergInquirer Staff Writer The Street administration has told city workers not to report "mere undocumented aliens" to federal agents or deny immigrants any services such as health care or education.City Solicitor Nelson A. Diaz, in a memorandum dated Oct. 10, puts Philadelphia among a handful of cities - including New York - that formally refuse to help the federal government pursue ordinary illegal immigrants."Individuals should know that they may seek and obtain the assistance of city agencies... without negative consequences to their personal lives," Diaz said in the memo released by immigrant advocates...