Design Literacy: Understanding Graphic Design

Signs and symbols are easily transformed to mean good or evil
depending on how they are sanctioned and applied over time—and who
accepts said usage. Whatever satanic associations the crow’s foot may have
had (or still has), when Bertrand Russell “designed” this symbol he imbued
it with more positive virtues of life and cooperation. Once adopted by the
CND (and later by scores of other antiwar, ecology, civil rights, and peace
and freedom groups), its meaning was forever changed to protest in the
service of humanity.