The Obama administration may not be lending arms to dissidents in the Middle East, but it is offering aid in another critical way: helping them surf the Web anonymously as they seek to overthrow their governments. Federal agencies - such as the State Department, the Defense Department and the Broadcasting Board of Governors - have been funding a handful of technology firms that allow people to get online without being tracked or to visit news or social media sites that governments have blocked. Many of these little-known organizations - such as the Tor Project and UltraReach- are unabashedly supportive of...