President Kumba Yala's restraint of public freedom based on his claim to eliminate threats to democracy resulted in increased self-censorship by the news media and several crackdowns on the press. Free expression is constitutionally guaranteed and had been generally respected. In 2001, however, a new public prosecutor threatened to arrest journalists of an independent radio station for refusing to hand over tapes of a weekly news commentary. Two journalists of the daily Diario de Bissau were arrested. In October, the attorney-general ordered the indefinite closure of the Diario deBissau and the weekly Gazeta de Noticias on the grounds that they threatened "national security."