How many ears must one man have
Before he can hear people cry?
Yes, 'n' how many deaths will it take till he knows
That too many people have died?
The answer, my friend, is blowin' in the wind
Bob Dylan song made famous by Peter, Paul and Mary (Mary Travers 1936-2009)
Mary Travers was 72. among the groups big hits were: 'If I Had A Hammer,' 'Leaving on a Jet Plane,' 'Blowin' in the Wind,'and 'Puff the Magic Dragon.' The cause was complications from chemotherapy.