snip In the past, such efforts have been stymied by legal and cost concerns, said Christine Nelson, a program manager with the National Conference of State Legislatures. But states' bigger fiscal crises, and the surging demand for public assistance, could change that. "It's an example of where you could cut costs at the expense of a segment of society that's least able to defend themselves," said Frank Crabtree, executive director of the West Virginia chapter of the American Civil Liberties Union. Drug testing is not the only restriction envisioned for people receiving public assistance: a bill in the Tennessee Legislature...