Let not the perfect be the enemy of the good though. Every time I hear someone asking for some improvement in openness and security, someone jumps in to point

Let not the perfect be the enemy of the good though. Every time I hear someone asking for some improvement in openness and security, someone jumps in to point out how something else will circumvent it. Fine -- but how is anything going to get done if we sit paralysed a proliferation of worries?