"What would really 'suck' is if we don't fix a corrupt system that lets giant companies like Facebook engage in illegal anticompetitive practices," Warren hit back.
Glass was smashed, tables overturned and the N-word was scrawled on the restaurant's walls.
Locals are outraged as culprits are believed to be "trophy hunting" and "showing off."
A 61-year-old Spanish woman from the port town of Castro Urdiales has been arrested in connection with the find.
Images of the explosions show sheared metal and extensive damage to buildings.
Controversial academic taken to facility in New York following "horrific" withdrawal symptoms.