Call it the preschool diaries. When one tot acts out at nursery school because his family recently moved, the whole class can be affected. The Wall Street Journal recently found that behavioral problems among young children have grown beyond the usual stubbornness that typically characterizes the preschool set. With more educators recognizing emotional issues in the youngest school children, some nursery schools and day care centers are enlisting the ongoing help of mental health professionals to provide insight and support to staff members. The behavioral experts help the teachers and school staff maintain order in the classroom and teach the students to modify their actions before they become routine. Do you support this practice?