Off camera, the confirmation hearings of Samuel Alito Jr. offer better entertainment than what makes it to the TV screen. Witnesses are abruptly uninvited...For GOP: Former Alito associate, pres-elect of the Natl Assoc of Women Lawyers, which declared Alito... "not qualified to serve on the court from a women's rights perspective." Uninvited. For Dems: Former Alito fellow Princeton-alum versed on CAP (conser. club whose opin mirrored Nazis), wrote "Animals Suffer a Perpetual Holocaust" defending PETA. Uninvited.