Individuals and companies would be spared from filing customs documents and paying import duties and fees for more of their shipments under a proposal by two U.S. senators that would raise the threshold for such requirements from $200 to $800. The Low Value Shipment Regulatory Modernization Act of 2013, sponsored by Sens. John Thune, R-S.D., and Ron Wyden, D-Ore., is strongly supported by the express delivery and e-commerce industries, which say it would increase trade by redu...