Many different levels of press freedom exist in Africa, from Senegal and its lively newspapers to Eritrea and Djibouti, where there are no privately-owned media at all. After a wave of liberalization in the 1990s, press freedom violations are now all too common. They include arbitrary censorship, especially on the Internet (by means of ad hoc Internet cuts in some countries), arrests of journalists on the grounds of combating terrorism, and acts of violence against media personnel that usually go unpunished. The financial weakness of many media outlets makes them susceptible to political and financial influence that undermines their independence. For the most part, state-owned media still tend to be governmental mouthpieces or propaganda tools and have a long way to go before they can become independent public service media that reflect a variety of opinions.