Its open to 401k/403b investors who have access to that fund; mine used to.
Depends on what you consider an emerging market. The fund primarily invests in the US and western europe. It has about 13% in mexico, central and south america, and the APAC region including china and india. Not much if anything in eastern europe, the Former Soviet states, or Japan. About 5.5% is in the americas from mexico and south (most of it is in brazil), and 7.5% is in the APAC region, about 1/3 of that in south korea.
Be fearful when others are greedy, and greedy when others are fearful. Just another form of "buy low, sell high" for those who have trouble with things. This rule is not universal. Do not buy a 1973 Pinto because everyone else is afraid of it.