The Waco incident was the federal leviathan against one small and isolated group of adults and children. Let them try that on the whole city of Waco and see what happens. They'd be decimated by the massive retaliatory force they'd meet.
Now multiply that over hundreds of cities and towns across the country (or even one specific region) and you can see the application of federal armed force against the civilian population is a ridiculous notion, and something they'll never try.
And, while there were some military at Waco, Timothy Mc Veigh was also a recently discharged soldier if memory serves me correctly, and his motive to blow up the fed. building was the Waco massacre.
Texas will have 98% of Fort Hood on the Patriots side!