Burma's news media remained among the most restricted in the world, despite the transition from military to civilian rule and President Thein Sein's vow to adopt a more liberal approach. The Press Scrutiny and Registration Department reviewed all local news journals prior to publication, censoring a vast array of topics. Criticism of the government and military was forbidden, although censors allowed more coverage of opposition leader Aung San Suu Kyi and some political and economic topics. Authorities exercised control with a vengeance: The nation was still among the world's worst jailers of the press. Exile-run media continued to fill the news gap, but at a high cost: At least five undercover reporters for exile media were imprisoned. Regulations adopted in May banned the use of flash drives and VoIP communication services in Internet cafés.