WASHINGTON — The Supreme Court has thrown a hitch into President Barack Obama's new health care law by blocking a requirement that some religion-affiliated organizations provide health insurance that includes birth control. Justice Sonia Sotomayor late Tuesday night decided to block implementation of the contraceptive coverage requirement, only hours before the law's insurance coverage went into effect on New Year's Day. Her decision, which came after federal court filings by Catholic-affiliated groups from around the nation in hopes of delaying the requirements, throws a part of the president's signature law into temporary disarray.