1.   The bullfighters are striking over what they call misguided and unreliable government efforts to detect and prevent horn shaving.

2.   The confederation is demanding that the Interior Ministry change a law that requires veterinary examinations of bulls after fights to detect horn shaving and other irregularities.

3.   The government and many critics are concerned that horn shaving, which disorients the animals in the ring, is already widespread.

4.   The union is demanding that the Interior Ministry alter a law requiring veterinary examinations of bulls after they fight to detect horn shaving and other irregularities.