Im not going to talk about the ethics and risks of bribery, like most of the replies that you are getting, but I dont think that bitcoin is the ideal medium for bribery. Bitcoin is not a very common currency. You talk to the average person about it, and theyll probably tell you that they dont understand bitcoin. Of course, if you give anyone $1000 in bitcoin, they will still have the motivation to cash it in, but theyll also have trouble doing so. If you are trying to bribe someone with a usb stick holding bitcoin, it is too slow for them to verify the amount of bitcoin on the usb. Bribery should be quick and discreet.