Software wiretaps

Recently, CNN had an article about the US government requirement to include wiretaps in networking applications, including software.

This proposal seems to be interesting in the sense that it is very difficult to include such wiretaps in open-source software without a) the taps becoming public knowledge or b) the tapping algorithms getting reverse engineered.

To me, it seems much easier to include such "hidden" wiretap in traditional, commercial software. It remains to be seen how this proposal advanced in the legislation, and how open-source software gets addressed.