How can I bleach wool?

The page at http://www.sciforums.com/showthread.php?t=74104 says:

1. NEVER use chlorine bleach on wool or silk. Both are dissolved by sodium hypochlorite, the active ingredient in Chlorox.
2. NEVER mix chlorine bleach with any other chemical. You may release chlorine gas which is toxic and could cause death or permanent damage to your lungs.
3. Do not add chlorine bleach to any garment which has been soaked in vinegar without throughly rinsing out the vinegar.
4. The proper bleach for wool is hydrogen peroxide (H2O2), which is never found in chlorine bleach. You can use first aid strength H2O2, hair bleach strength H2O2 or 35% H2O2.

The strength of the H2O2 will determine the length of time the fabric needs to stay in the solution. A small amount of plain Tide detergent or Synthropol added to the solution will help wet the fabric. A dark fabric like navy will probably never bleach white and may not even stay blue depending on what color it was before it was navy.

Vinegar is used in wool to set dyes, not remove them.

The page here http://www.prochemical.com/directions/BleachingWool.htm is also instructive.