This week 20 Questions hosts Micky Rosenfeld, police foreign press spokesman and superintendent. Rosenfeld reveals that five arrests were made in connection to the pipe-bomb explosion on Derech Hebron in south Jerusalem just over a month ago. A sanitation worker from the Jerusalem Municipality lost his hand when a garbage bag he was lifting exploded.<span style="font-weight: bold; text-decoration: underline">RELATED:Shin Bet nabs Hamas terror cell in east JerusalemThe men arrested were residents of the east Jerusalem neighborhood of Sur Bahir and were in contact with Hamas in Gaza, planning more shooting attacks in Jerusalem. Rosenfeld discusses the cooperation between Israeli and European security agencies, particularly in the fields of explosives and forensics. Israeli agencies travel to Europe to train security agencies in how to deal with large scale incidents including terrorist attacks and natural disasters. According to Rosenfeld, despite the rise of attacks recently, the notion of a third Intifada of a similar scale to those witnessed in 1987 and 1996 seems unlikely. Rosenfeld attributes the decline in the number of attacks since 2004 as due to extra patrols and the security fence.20 Questions is a JPost Premium Zone initiative empowering our readers to shape the content they would like to see. Reader participation is vital and we encourage your feedback. Please submit all comments, questions and suggestions in the fields below or alternatively, send them to jpost20questions@gmail.com.