"In many American cities, local politicians spend the winter months helping clear away snow. But Southern California is different. Here, elected officials, sometimes using taxpayer money, bring the white stuff in. Man-made snow has already come to Pacoima, Long Beach, downtown Los Angeles and many places in between this year. (A version of the stuff — hail — fell for free in Watts last month, but cost a bundle to clean up.) And in the coming weeks, it is scheduled for several other locales, including a patch in Exposition Park where a representative from Los Angeles Mayor James K. Hahn's...