From United States v. American Tel. (1983):

> The threat to competition that is claimed to be posed by AT&T in this industry is that, through the use of cross-subsidization and customer discrimination, it will use its power in the interexchange market to disadvantage competing electronic publishers. While the possibility of cross-subsidization is as remote here as it is with respect to other subjects considered herein, there is a real danger that AT&T will use its control of the interexchange network to undermine competing publishing ventures.

Sounds familiar, I wonder how things ended for Ma Bell?