If the ACA is repealed, with it will go the protection it offers individuals with preexisting health problems. They would again be denied health insurance or subjected to unaffordable insurance premiums.
The rapid transition from a non-conducting to a conductive state produces a brief emission of light and a sharp crack or snapping sound. A spark is created when the applied electric field exceeds the dielectric breakdown strength of the intervening medium.
A fire will start if you don't turn off your engine because when a car is on, the engine produces spark which can ignite gasoline. The spark comes from the spark plugs and etc.... Sparks from your engine could trigger a fire if they happen to connect with any fuel or strong gas fumes...