beheaded and pedestrians rammed with the car on westminster bridge. law enforcement out in full force. recalling horas from a not so distant past. in 2005, the city of london was introduced to violent extremism. for suicide bombers blew himself up and coordinated attacks that his the city's public transport system. 52 were killed and hundreds injured in what remains -- the deadliest attack on british soil. another attack was narrowly avoided when poorly made makeshift explosive never went off. hacked toldier was death in the middle of the street in southeast london. attacker claim to want to avenge muslims. the attackersf wielding machete was seen around the world. citizen stabbed a