To obtain a waiver of the J1 2-year home residency requirement based on the fear of persecution, you should apply directly to the USCIS with Form I-612. If your waiver is granted, the USCIS will notify you directly.  

The Form I-612 should submitted with documents to support a J1 waiver application based upon a fear of persecution claim that the return to the country of nationality or last foreign residence would subject the applicant to persecution on account of race, religion, or political opinion. If the application is submitted without the information included, USCIS may consider the application for failure to establish the relationship or persecution necessary to be considered for the J1 waiver.