Journalistic Freedom Around the World

I'd better be careful what I write because the United States ranks number 48 on this year's Reporters Without Borders index of press freedom around the world. The list ranks Iceland and Norway in the top spot and Eritrea and North Korea at the bottom of the list of 169 "countries" (which includes several non-countries); I wonder what happened to the more than twenty missing countries? Maybe they have no press freedom at all and thus aren't worth mentioning? The report also warns that bloggers are also facing problems in countries where governments disapprove of what they have to blog.