Thanks! I actually had seen the references to the #10 fuse problem, but can not see any obvious leaks. When the leak occurs, I assume it is easy to tell (?) Plus, the brake fluid level never seems to change, so I don't know.
I looked at the back brakes this weekend and they don't need replacing. I cleaned the brake dust out, though, since everything looked like it had barnacles on it

I could see the ABS sensor was caked with it, too, so I held hopes that my problem might be as simple as needing cleaning. It probably won't be that simple, but the light didn't come on during the test drive afterward, so we'll see.