One can usually tell which countries have experienced terrorism, or at least pondered it, by the type and construction of trash receptacles. America has many te

One can usually tell which countries have experienced terrorism, or at least pondered it, by the type and construction of trash receptacles. America has many tens of thousands of thick decorative stone, concrete and metal public trash receptacles vulnerable to bombings. When that happens, they will be gone, but rarely before. Last time I was in Victoria Station in London, there was one alumin(i)um hoop with a clear trash bag, emptied constantly.