Given the Snowden-docs you should be careful of anything compiled on US soil.
But yeah its mainly a publicity stunt where govs in US are forbidden and/or discouraged from using chinese gear however most hardware (and software) is manufactured and/or compiled in China today (either totally or in part as in propertiary drivers and whatelse).
So by getting the sourcecode and formally compile the very same code but in a computer within US borders the govs have their asses covered since they are (on paper) using software compiled in USA and not in China.
The downside is that the compile doesnt seems to be reproducable as more and more for example linux distributions are gearing towards (part of assurance - if I get the sourcecode from you and compile it using the same compiler and libraries (versions) I should get the exact same output otherwise the sourcecode you provided differs from the one used to compile the binaries you provide). That is in a perfect world the US and the non US version, unless changed features (like available cipher suites and whatelse), of a particular firmware version should give the same sha256 (or whatever hashalgo you prefer) output.
So in short do you prefer the Chinese or the USA backdoors? ;-)
