What's legal and what's right aren't always the same thing. For example, in Nazi Germany, it was illegal to be Jewish; and communicating heavily with Jews may h

What's legal and what's right aren't always the same thing. For example, in Nazi Germany, it was illegal to be Jewish; and communicating heavily with Jews may have increased suspicion that you were Jewish. Or in Rwanda in 1994, communicating with Tutsi's may have given rise to suspicion that you were a Tutsi. Or in North Korea today, communicating with defectors may raise suspicion that you are likely to defect. Here are some legal, or questionably legal but morally correct things you may use this for, in the modern day US: you would like to notify news organizations about a secret NSA spying program, but don't know who to trust, since some news organizations may hand your information over to the federal government when pressured to do so, to root out the source of the leak. You are a lawyer for a detainee in Guantanamo. To collect evidence, you need to contact several people who you know are on terrorist watch lists, but want to avoid being placed on such a list yourself and be restricted from flying. You have are in the process of divorcing an abusive husband who is a high-ranking FBI official. You want to be able to contact your lawyer and his, without worrying that he may abuse his authority to find out information about where you are now living. You are a founder of a whistleblowing operation, which has recently done a large exposé on US forces killing innocent children in the Middle East. You would like to keep in touch with your friends and family, without them also being added to watch lists that cause all of their electronics to be confiscated every time the fly. You are helping to get information out of China about human rights abuses about Tibet. Given that the Chinese government has done hacking deliberately targeting surveillance back doors of networking systems of US companies, you worry that they may be able to track you.