Since President Trump’s trade war is all over the news, you should know this: On Wednesday, the Census Bureau and the Bureau of Economic Analysis will be doing a major revision to past trade data, going back as far as 2010 in some cases.

Whether this will make the already-gloomy US trade situation look even worse — or maybe better — is anyone’s guess. Nobody is paying attention to this, but the revised number could change the dialogue on this major area of contention.