Yea... the quick ramping up of search and arrest activity is because the Franch authorities had been aware of these clowns for a LOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONG time.
Only just NOW acting on previously held information.... why?
All those victims paid with their lives because the authorities were being PC and were afraid of their own shadow when it came to protecting the citizens of Paris.
Nothing new in that, I guess.