CHIP ON YOUR SHOULDER: Another dystopian peek into the future: some 20,000 students in the northeastern Brazilian city of Vitoria da Conquista are donning uniforms embedded with locator chips that alert parents if they cut class. The whole project came at a pretty hefty price tag--$670k, according to the city's education secretary, but hey, at least the T-shirts can be washed and ironed without damaging the chip. Up next: permanent tattoos?