Eternal NSA surveillance. The TSA. No-fly lists. Secret prisons. Guantanamo Bay. Election rigging. Being targeted by IRS. The percentage of population that is in prison (much higher than USSR at the height of its power).
I could go on. Out of everything you stated, the only thing we don't have is mass executions of political prisoners. But the fact is, the differences between the USA and USSR are only on a matter of scale. And that scale is growing at an alarming rate.