There will not be martial law on Sept 8th. If that happens our economy will tank worse than it is now. Fear is the most dangerous drug there is and they will not let it spread unless it doesn't directly affect us and it affects the election.
Don't let this scare you. There are tons of vicious things we already have in our grab-bag of tricks and they've never been used in the population, nor will they until they've taken us down for our money.