In a new episode of "Only Here," a KPBS podcast about life at the U.S.-Mexico border, tech entrepreneur Cheslav Versky talks about his pitch to make the unpredictable border line more predictable.

A training class is held for young Chinese entrepreneurs to improve their ability in cross-border business in Yixing, a county-level city in East China's Jiangsu province. [Photo/en.ciyec.org.cn ...