Female combatant, Submarine and Anthrax - Thought Experiment

For the next 2 minutes, imagine you are a terrorist fiend ...

Your challenge is to mastermind an impressive act of terror to generate public alarm and weeks of publicity for your disreputable cause. Such an act requires selecting an exotic method (explosives, chemicals, germs, nuclear weapon, radioactivity) and employing it in your cult's signature style, numerous, simultaneous upsets to the status quo.

To the extent that your actual attacks disrupt secure military installations or high-profile civilian targets, they will be considered more successful.

HINTS:
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from Milan (delivery method): An Italian company has resorted to using remote-controlled toy submarines to run fiberoptic cable through the sewers of Milan. The model of the submarine is apparently the Neptune SB-1, a $600 toy by Thunder Tiger of Taiwan.
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from New York City (targets): Stolen Map of Water System May Put Supply in Jeopardy
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FoxNews: POISONING NYC WATER RESERVOIRS WITH ANTHRAX, PRIVATE INVESTIGATOR BILL WARNER YouTube (1-1/2 minute)



Submarines are always silent and strange.