VOA慢速英语:Iran's Next Step in Building a 'Halal' Internet

censor – v.  to examine books, movies, letters, etc., in order to remove things that are considered to be offensive, immoral, harmful to society, etc.

filter – v. to remove something unwanted by using a filter

foolproof – adj. done, made, or planned so well that nothing can go wrong

objectionable – adj. not good or right

Psiphon – n. a system of communication technologies that permit Internet users to bypass government filters and censors.

Tor – n. a type of software used to prevent people from learning one’s location or Internet browsing history

VPN – n.  a network that uses the Internet to provide remote offices or individual users with secure access to a network; an abbreviation for Virtual Private Network

unveil – v. to show or reveal something to others for the first time