Last Saturday, a young man tried to force his way into the Eiffel Tower with a knife, shouting "Allahu Akbar" (God is Greatest). A source said he told investigators he wanted to kill a soldier. In June, police shot a man who attacked an officer with a hammer outside the Notre-Dame cathedral in Paris In April, an attacker shot dead a policeman on the Champs-Elysees. The assailant, later named as convicted criminal Karim Cheurfi, was shot dead by security forces In March, a car driven by 2 women dressed in burqas tried to blow up Notre Dame Cathedral with a car bomb of propane gas canisters. In February, a man armed with a machete attacked a security patrol at Paris's Louvre Museum