Two Questions for the Establishment Clause

In different ways, Noah Feldman and William Marshall critique the received liberal wisdom concerning Establishment Clause jurisprudence.  Feldman argues that we should adopt the “no money, no coercion” principle of the Founders.  This means the government should reduce religious groups’ access to public funds through faith-based social service or school voucher programs, but become more tolerant of symbolic, non-coercive public endorsements of religion, such as Ten Commandments displays.  Meanwhile, after surveying the values and shortcomings of secularism, Marshall concludes that government should allow religious groups to receive funding, under certain conditions, but should be diligent in preventing new public endorsements of religion.

Two important practical questions emerge from these pieces.  First, to what extent, if any, should religious groups who perform social services be eligible for public funds?  Second, how should we understand the relationship between symbolic endorsement of religion and coercion?