FED ALERT: Prosecutors questioned Hsiao Yen Wang about a shadowy-seeming Chinatown fund-raiser reported on by The Post. The feds are eyeing a Chinatown donor to Clinton's presidential campaign to see if she was "coerced" into being a front for someone else's contribution.--SNIP--The LA Times reported on the April 9 fund-raiser, which netted about $380,000 - some from donors of meager means..... following stories about Clinton fund-raiser Norman Hsu, who has been charged with campaign-finance and other violations.