The European Commission will propose expanded EU legislation to fight what it says is growing use of the internet as a "virtual training camp" for terrorists as part of a package of measures. It is likely that the measures could be approved within days.
Justice and Security Commissioner Franco Frattini proposes creating an EU offence of "public provocation to commit a terrorist offence", that would apply to incitement even if it did not lead to an actual attack.
The report comes at a time when British intelligence services are warning that there are at least 2,000 people in the UK who pose a threat to national security because of their support for terrorism, the head of MI5 has said. This represents a 20% rise since 2006.