Microphones against tanks: The voice of freedom on the airwaves and the invasion meant to silence it (3)

The second half of the 1960s brought political thaw to stagnant Czechoslovakia and, with it, a breath of freedom that inevitably spread through the corridors of Czechoslovak Radio. International broadcasting, until then a strict and uncompromising instrument of communist propaganda, slowly began to change its tone. Czechoslovakia was opening up to the world, and the airwaves no longer carried only rigid ideological dictates.