I’m not going to talk about the ethics and risks of bribery, like most of the replies that you are getting, but I don’t 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 they’ll probably tell you that they don’t understand bitcoin. Of course, if you give anyone $1000 in bitcoin, they will still have the motivation to cash it in, but they’ll 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.