Feels a bit overkill and way too identifying - security cameras + internet records + GPS locations will all help track you down, even if they are intermittent.<p>Buy a stack of envelopes from a supermarket. Buy a stack of stamps. Buy a USB. Acquire all with cash. Transfer all files to the USB via live CD - make sure all meta-data is stripped and files are redacted to avoid fingering you. Handle the envelopes/stamps/USB with care - gloves + hairnets + have a shower before handling (skin cells). Print the addresses (be careful here - printers sometimes put identifying marks - get the most common inkjet that doesn't use dots). Print a message and stick it in the envelope - e.g. "USB contains leaked NSA documents on massive domestic spying. Copy files to your computer then destroy and dump USB then burn the envelope to ensure your own security." Put the stamp on. Drop the letter in the mailbox - try and get a journalist's home address, they'll read it.<p>Repeat for multi-journalist dump.<p>Make sure you don't lick the stamps and drop the letters off in physically separated postboxes without security cameras.<p>You <i>do not</i> want to be in constant communication with journalists/people whilst doing any of this, because the more you talk with them, the more you leak. You want to just strip all identifying data, dump your leak, and run. This tactic has been used for ages to transfer sensitive data, most notably by kidnappers (ransom notes), spies (easy data transfer), whistle blowers (documents) and serial killers (think Ted Kaczynski).