The Supreme Court yesterday rejected Wal-Mart Canada Corp.'s fight to keep a "union prevention handbook" away from the labour board probing its conduct during union drives in Saskatchewan. The country's top court refused to hear Wal-Mart's argument that the province's labour regulator has no right to see a host of corporate documents, including one entitled, "Wal-Mart: A Manager's Tool Box to Remaining Union-Free."...Andrew Pelletier, a Wal-Mart spokesman, said the retailer is "disappointed but not surprised."