a neighborhood being 'held hostage' to fear [=a neighborhood controlled or dominated by fear]
The terrorists demanded a plane and a pilot in exchange for the 'hostages'.
The 'hostage' crisis is now entering its second week.
(..) against the Capitol. In exchange, I have promised several concessions. First, we'll assess all opportunities for the extraction of the Victors held hostage in the Capitol. Peeta Mellark, Johanna Mason... - Finnick, I made the deal for Annie, too. - ...and Annie Cresta. (..)2014 The Hunger Games: Mockingjay - Part 1