The risk of terrorist attacks in Europe has increased since Hamas launched its attack on Israel on October 7, the police authority Europol told dpa. The recent attacks in Brussels and Paris were motivated by this, Catherine De Bolle, Europol director, said on Friday in The Hague. “The terrorist threat has increased after Hamas attacked Israel and Israel’s reaction to it in the Gaza Strip.” She said that jihadist groups pose the biggest threat. Europol has also observed clear overlaps between the militant Palestinian organization Hamas, the extremist militia organization Islamic State and al-Qa…