Workers at IKEA's only U.S. plant are deciding whether to unionize...The union is challenging the Swedish furniture giant's vaunted corporate ethos, accusing the retailer of paying its American workers low wages and tolerating unsafe working conditions...An IKEA spokeswoman denied union allegations that the Virginia plant operates in conflict with IKEA's principles, saying the Danville operation has consistently measured up to its own internal and third-party audits.