WASHINGTON, CMC – The United States has changed its mind in allowing the daughter of Cuban President Raúl Castro to attend a gay rights forum in Philadelphia, Pennsylvania, reversing a previous rejection. Sexologist Mariela Castro, the director of Cuba’s National Center for Sex Education and a vocal proponent of same-sex marriage and gay rights, has received a US visa to attend several gatherings in May at the United Nations headquarters in Manhattan in New York. But the State Department initially denied her permission to travel to Philadelphia to attend the Equality Forum’s Global Lesbian, Gay, Bisexual and Transgender (LGBT) Summit on Saturday and receive the group’s International Ally for LGBT Equality Award.