The action takes place in February 1982 based upon the episode of Hill Street Blues seen on Martha's TV.
While pleading for his life, Anton offers Philip access to the ARPANET.
He is referring to the predecessor of the Internet.
When Agent Gaad is talking to Agent Beeman about the fact that the Department of Defense won't reveal to him which project Anton Baklanov was working on, they are in Section B2 of the parking garage. Baklanov was actually working with the DoD on the development of stealth technology, which was eventually used on the B-2 Spirit (aka the Stealth Bomber).
The news story about a request to increase the US military budget was taken from the February 2, 1982 New York Times.
A kibbutz is a collective community in Israel that was traditionally based on agriculture. Kibbutzim began as utopian communities, a combination of socialism and Zionism.