Internet subscriptions opened one after the other, links on anonymous phone card,  palmtops with indecipherable access electronic keys, claims via e-mail.
After Nadia Lioce's arrest starts the huntig for the red hacker.
The Bologna magistrates investigating Marco Biagi's murder are pursuing an informatic super-expert, that could have given the terrorists the required know-how in order to surf the net leaving (almost) no trace.
Investigators have some name, but they are focusing on an over-paid computer technician consultant of big firms,  apparently not related to the farthest left-wing.
Starting point of this kind of telematic war is an almost forgotten failed attempt, the one that, on thursday july 6th 2000,  makes beating faster the heart of Luciano Fontana,  organizing secretary fo Milano Cisl pensioned.
At quarter past eight A.M:. Fontana arrives in via Tadino premises, opens the windows  and finds between the flower boxes two rudimental explosive devices: plastic bags full of oil with a chemical trigger and a timer.
Half day passes, and arrives a strange claiming e-mail to five newspaper.
Ten pages attack to Patto di Milano (the working pact worked out by Biagi and signed only from Cisl and Uil) preceded by the five pointed star.
The signature is Nucleo Proletario rivoluzionario (Npr : proletarian revolutionary nucleus).
Finding the sender seems impossible.
The investigation becomes tangled between the internet points where the multiple accounts (subsriptions to the providers) have been opened,  but in the end gives the investigators a clue: an e-mail address that will show as suspect.
The best part of a year passes and the scenes moves to Rome, where the Digos men and the Ros carabinieri are working on Br-Pcc (Brigate Rosse- Partito Comunista Combattente : Red Brigates- Fighting Communist Party) who, on may the 20th 1999, by killing Massimo d'Antona,  have launched a sort of an army call up to minor clandestines groups.
On april the 10th 2001 somebody seems to heed.
A high power bomb, triggered by the ring of a phone cell with a pre-paid card, hit the via Brunetti Istituto affari internazionali (international affairs institute) premises. 
Again the cliam is sent via e-mail, and this time using a not-ordinary browser.
In fact, who has manoeuvred with that communiquŽ was using Mozilla, a very powerful program,  bearing as logo a red five pointed star gold fringed, in which appears a tyrannosaurus.
But that is not enough.
The acronim claim the explosion is almost identical to the one of the failed attempt to the Milano Cisl: nucleo di iniziativa proletaria rivoluzionaria (Nipr : Revolutionary proletarian initiative nucleus).
The computer experts start working and some of them are sure that behind the telematic claims of Milano and