AN ARSON attack on Jewish ambulances has sparked “copycat” fears – as a former top terror cop warns Iran sleeper cells have “infiltrated” the UK. MI5 are probing links to an Iranian terror group after four vehicles were torched in the early hours yesterday in Golders Green, North London. Terrified locals were awakened by loud explosions as flames ripped through the ambulances belonging to volunteer service Hatzola. Six fire engines and 40 firefighters rushed to the scene, next to a synagogue, at around 1.45am before alerting cops, who launched a probe. The three suspects, seen in stark footage of the...