Terrorism politically motivated violence

Terrorism is politically motivated violence against non-combatants in order to spread fear (terrorize) and to force some change in policy. Terrorists attack indirectly (in civilian disguise) and against “soft targets” in order to strike fear and get attention to gain support for their cause (recruits, funding, propaganda). They seek revenge, renown, and reaction and are all about scaring civil society and making themselves known. So global news media agencies and the internet are both perfectly suited tools for terrorists to spread their message. How can we reduce terrorist use of the media and the internet as a tool for their evil purposes? Address both the media and the internet separately in your answer.