Being a member of a Mensa group, I have to ask...
...Are you serious?
First of all: American Sign Language is a VISUAL language.(PERIOD)
Second of all: Although it does not apply to some, we have enough problems learning English as is. How do you propose that we learn another written language?
There are so many other complications related to having ASL as a written language as stated in previous posts.
If you have any questions that you would like to ask me, feel free to PM me. (Note: You are special to get the permission
)