Some Wall Street investors have put money into trailer parks in search of juicy yields. A new study by the RAND Corp. estimates that without an extension of a federal backstop for terrorism insurance, taxpayers could be faced with as much as $7 billion in losses should another large-scale attack take place. An analysis of the San Francisco rental market shows that eviction rates are high near “Google Bus” stops. New York downtown retail landmark J&R Music is shutting its doors after 43 years. Dollar stores are suddenly facing hard times. These are among today’s 10 must reads for the commercial real estate sector.