A change in the weather.

BYLINE: BY PHILIP SPAYD

Bob Dylan has famously said that you don't need a weatherman to know which way the wind blows. But with the winds gusting in different directions in the world of international trade, it is difficult to know what is on the horizon.

The winds shifted in early April when Deputy Customs Commissioner Jayson Ahern testified before the House Appropriations Subcommittee on Homeland Security. He noted that as Customs has worked to gain "control of our ports and borders," it also must continue to perform its "traditional missions," which include "regulating and facilitating international trade, collecting import duties and enforcing United States trade laws." It would appear that Mr. Ahern was signaling a return in focus …