BERLIN (AP) — Germany's justice minister on Friday questioned a decision by prosecutors to open a treason investigation against two journalists, a move that prompted strong criticism from free speech activists. Website Netzpolitik.org, which covers digital rights issues, said Thursday it was notified by federal prosecutors of the probe against its staff and an unidentified source over two reports revealing authorities' plans to expand surveillance of online communication. Treason investigations of journalists are rare in Germany.