The Bureau of Economic Analysis (BEA)

Here is the graph of FDI from BEA:

As you can see Foreign companies are buying US assets extensively so why would the United States not track this very important statistic?

Economy in Crisis writes in Burying the Money Trail:

With the U.S. no longer following the foreign money trail, the American public will cease to have the ability to track the rapid sell-off of America’s best companies to foreign interests, essentially burying the problematic fact that America is for sale.

The American Manufacturing Trade Action Coalition, along with 38 other organizations issued a press release about the BEA decision to not track this vital statistic: