but not in

but not in preventing them. They watched helplessly as the city ground to a halt, one problem after another dominoing into madness. It might be days before order was restored. They would have been shocked to know that four people were responsible for all the mayhem.
The pattern was repeated in Chicago, Milwaukee, Saint Louis and elsewhere, with poison gases, bombs, system failures and attacks. The undersea city of Baja Pacifica had its dome shattered by a tiny nuclear device. Europe and Asia received their own share of abuse. Several well-designed worms and windows created gaps in the comm-nets, bouncing through electronic space like manic grasshoppers. But while politicians at hastily arranged conferences sweated, a far worse danger was brewing, minutes and infinite distance away.
* * *
A silent swarm of death snapped into existence near Earth. There was localized interference due to gravitational distortion. Blurred ripples surrounded each dropout,