Batman Arkham City Lockdown': Pummel the bad guys

Why in Batman Arkham Knight don't they call down the FBI, CIA, NSA, Sercet Serice, DEA, BATF, DLS, CDC, and the US Military to stop Scarecrow and Arkham knight when they threaten

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Batman Arkham City Lockdown - iPad 2 - HD Video Walkthrough - Part Store

Batman: Arkham City Lockdown - Wikipedia

Batman: Arkham City Lockdown (2011)

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The Batman' Will Open the Doors to Arkham Asylum and Could Spawn Spinoff Movies for Its Villains - Bloody Disgusting

Every Batman Arkham Game – Ranked Worst to Best - FandomWire

Batman Arkham City Lockdown' Review – The Dark Knight Tries His Hand at 'Infinity Blade' – TouchArcade