Russia

In general, "anyone can apply for a [temporary] visa in Moscow or the other U.S. Consulates in the Russian Federation" even if one is not a Russian citizen. However, one's chances of having the visa approved are lower when one does not apply in one's home country because U.S. Consular officials may not be able to properly evaluate the application for non-Russian citizens, so one's chances of approval may be lower outside of one's home country. The U.S. Embassy states: