Conspiracy theorists are pushing unsubstantiated claims that an Army Black Hawk helicopter’s deadly collision with a passenger jet was deliberate. American Airlines Flight 5342 was approaching Washington‘s Reagan National Airport at around 9pm on Wednesday when the military chopper and plane collided in mid-air, before falling into the Potomac River. The plane held four crew members and 60 passengers, while the helicopter was carrying three soldiers on a ‘training flight’. Officials have not said how many are dead but 28 bodies have been recovered so far. Authorities believe there may be no survivors….