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Photo: A worker shows a shoe-shaped pencil holder made from walnut shells at an arts and crafts factory in Lin'an, Zhejiang province, on Thursday. The factory uses the shells to make items such as massage cushions, car accessories, slippers and pencil holders, which have become popular among overseas consumers.

Bilingual news: Pollution could be a factor in autism, researchers have found. They say children with autism spectrum disorder were more likely to have been exposed to higher levels of certain air pollutants during their mothers' pregnancies and the first two years of life compared with normal children. The find could help explain the rise in cases. "Autism spectrum disorders are a major public-health problem, and their prevalence has increased dramatically," said Evelyn Talbott of Pitt Public Health.

Buzzword: A "goof" in filmmaking is an error made during film production that finds its way into the released picture. Depending on the film and the actual scene, the goof may have different effects: a loss of realism, an annoyance or something that's just funny. It is often a type of continuity error.