] Civil liberties group the Electronic Frontier Foundation ] (EFF) has joined a legal fight between three US online ] journalists and Apple. ] ] ] Apple wants the reporters to reveal 20 sources used for ] stories which leaked information about forthcoming ] products, including the Mac Mini. ] ] ] The EFF, representing the reporters, has asked ] California's Superior court to stop Apple pursuing the ] sources. ] ] ] It argues that the journalists are protected by the ] American constitution. ] ] ] The EFF says the case threatens the basic freedoms of the ] press. ] ] ] Code-named Asteroid ]Apple is particularly keen to find the source for information about ] an unreleased product code-named Asteroid and has asked the ]journalists' e-mail providers to hand over communications relevant ]to that. ]"Rather than confronting the issue of reporter's privilege head-on, ] Apple is going to the journalist's ISPs for his e-mails," said EFF ] lawyer Kurt Opsahl. BBC NEWS | Technology | Apple attacked over sources row |