1.   In the classical description, DNA is a book of code, and it tells cells what substances to make to carry on daily life.

2.   To comply with the rules, he said, those systems have to eliminate programming they would prefer to carry in order to make room for the broadcast signals.

3.   The demonstrators, carrying banners made of sheets, were peaceful despite some minor shoving matches with police.

4.   The gunmen seized four villagers and made them carry their dead and wounded, Perez said, revising earlier statements that five villagers were taken hostage.