Hamas terrorists were quietly building a sprawling European terror network for years — stockpiling guns, scouting targets, and even filming a martyrdom-style video — as they plotted a massacre on the continent to mirror the horrific October 7 attack on Israel, according to a bombshell investigation released last week. The chilling scheme, uncovered through a joint probe by European intelligence agencies and reported by Swiss outlet Neue Zürcher Zeitung, spanned at least seven countries: Greece, Cyprus, Germany, Austria, Denmark, Poland, and Britain. The terror group eyed the second anniversary of its 2023 rampage, October 7, 2025, as a possible attack...