Reports by the Congressional Research Service from 2008 discuss emerging policy issues regarding carbon dioxide pipelines for carbon sequestration, network needs and cost uncertainties regarding pipelines for carbon dioxide control, and jurisdictional issues in regulating carbon dioxide sequestration pipelines.
Total numbers of speakers is high: over 40 million Farsi speakers (about 60% of Iran's population); over 14 million Dari Persian speakers in Afghanistan (50% of the population according to CIA World FactBook & Britannica); and about 2 million Dari Persian speakers in Pakistan.
The number of Iranian Mandaeans is a matter of dispute. In 2009, there were an estimated 5,000 and 10,000 Mandaeans in Iran, according to the Associated Press. Whereas Alarabiya has put the number of Iranian Mandaeans as high as 60,000 in 2011. Iranian citizens abroad