The Saudi government is, however, becoming increasingly hesitant about limiting social media and other communications because of the potential for a political backlash.
Cipher systems prevailed, however, for military tactical communications because of the difficulty of protecting codebooks from capture or compromise in the field.
Mr Loehnis told the phone-hacking trial Mrs Brooks said that Andy Coulson might not survive in his post as the PM's director of communications because of the phone-hacking row.
Richard Driehaus, who oversees $2.6 billion in assets at Chicago's Driehaus Capital Management, picks Nextel Communications because of the strong operating profits (earnings before interest, taxes, depreciation and amortization) it posted in its September quarter.
Other vehicle functions that need less time-sensitive information can rely on satellites as a medium of communications, because of the inherent attributes of ubiquity and broadcast for satellite technology.
Recently, the interworking between 3G cellular networks and wireless local area networks (WLANs) has become a global trend in wireless communications because of the fact that these networks exhibit characteristics such as wide coverage and high data rates that mutually complement each other.
