(CNN) -- On Copacabana Beach in Rio de Janeiro, a line of 26 black crosses stand in the sand, with the Stars and Stripes behind them and a pot of flowers alongside. They are the tribute of the group Rio de Paz -- River of Peace -- to the victims at Sandy Hook Elementary School, from a group that knows all too well what tragedies gun violence can inflict on society. Brazil, Norway, Britain, France and Australia are among many countries that have seen terrible episodes of gun violence in recent years. But alongside the many expressions of sympathy and condolences that have poured into Newtown, Connecticut, from around the world, there is also a sense of bewilderment that such tragedies happen on an almost routine basis in America.
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Australia and UK also have had terrible episodes of gun violence in recent years
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These countries enacted laws sharply restricting gun ownership after tragedies
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"Nowhere has the policy reaction been so pathetic," British blogger says of U.S.
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Observers point to power of NRA, political culture that protects individual liberty
Some columnists don't detect any popular pressure in the United States for change, even if the gun control debate has flared in the wake of the @placeholder shooting.