One-third of the 30 billion e-mails sent worldwide each day are spam. That's 10 billion daily pitches for herbal Viagra, Nigerian scams, and genital-enlarging creams piling up in our inboxes. Neither legislation nor litigation against spammers has stemmed the tide, and they're not going to have much of an effect in the future, either. It's time to give up: Despite the best efforts of legislators, lawyers, and computer programmers, spam has won. Spam is killing e-mail. Read more: Slate.