But the company plans a new security system intended to let parents block Usenet access for their children and to verify a user's identity.

College and university officials tell of recruiting Hispanic students only to have their parents block their enrollments.

He has voted for tax cuts on capital gains and the V-chip, which lets parents block television programs.

By programming a V-chip to reject shows with a particular rating, parents block all programs in that group.

The board's "opt-out" plan, which would let individual parents block condom access to their children, isn't good enough damage repair.

Now a majority of the board has voted to consider adding an "opt-out" amendment, to let parents block their children from participating.

America Online allows parents to block children's access to chat rooms, Internet news groups and certain messages.

So some suggest putting computer chips in new sets that let parents block violent programs.

Some parents block parts of the Internet they think are bad for children to see.

It discusses the software that allows parents to block their children from access to selected Internet sites and lists some of the suppliers.