Answer:
Yes a Reiki Master can teach anyone who has the desire to learn and practice Reiki.
This includes people who are already Reiki 2 practitioners who want to become Reiki master themselves.
Today Reiki is being taught worldwide in class and online through distant learning and home study programs. This is because Reiki transcends all physical boundaries.
You can read more about online training here:
www.easyreikilearning.com
Usui Reiki is a spiritual practice that anyone can learn once he or she has had their channel opened by a qualified Reiki Shihan (master teacher). Teaching the spiritual practice of Reiki is an sct of love, so teaching someone that already has a special place in your heart fits in perfectly with the fact that Reiki is univesal unconditional love and harmony. You can read more about learning Reiki here: http://naturalhealinglearning.com/learning_reiki.html