The full text of the bill is here:
S. 3048: A bill to improve air safety by authorizing the limited use by air carriers of information... (GovTrack.us) (Limited use my ***. Limited to using it
against pilots.)
You can find your Senator here:
U.S. Senate: Senators Home
Many have web forms where you can express your opposition to S.3048, instead of using regular e-mail.
Might also be a good idea to also contact the Committee Chair John Rockefeller
Senator Jay Rockefeller (D-WV) and ranking Republican Kay Baily Hutchison
United States Senator Kay Bailey Hutchison