Bitcoin was always under governments pressure?
No, for many months Bitcoin was "under the radar" of governments so to speak, it didn't really come to negative attention until it started being worth 500 times more than the US dollar.
...its regulation (especially in USA). Is it temporary situation or permanent?
Temporary. Just like the Copywrong War, the War on Drugs, the War on Terror, and everything else in this life and the next.
All things come to pass in time.