Analysis - At U.S. high court hearing, passions over religion and its rules

Stephanie Ragusky of Loudoun County, Virginia demonstrates outside the U.S. Supreme Court as it hears arguments in the case of Town of Greece, NY v. Galloway, in Washington November 6, 2013. REUTERS/James Lawler Duggan

WASHINGTON (Reuters) - When the U.S. Supreme Court talks about religion, all hell breaks loose.

A dispute over an upstate New York town's prayer before council meetings produced an unusually testy oral-argument session on Wednesday that recalled the decades of difficulty Supreme Court justices have had drawing the line between church and state.