That is why judges toss out certain cases -- because the plaintiffs weren't able to show they suffered concrete harm. That was the circumstance when an Internet-fueled rumor sparked several lawsuits seeking to bar Honolulu-born Barack Obama from the presidency because the plaintiffs doubted he was, as the Constitution requires, "a natural-born citizen." In dismissing one such suit, Judge R. Barclay Surrick, of federal district court in Philadelphia, said an aim of the standing doctrine is to prevent courts from deciding questions "where the harm is too vague." He observed that a disgruntled voter who suffered no individual harm "would...