The FBI and US prosecutors say Wanying Zhang, also known as Heather, surveilled the Taiwanese president's son and his family.[7993696][7931764][7928217] A California woman allegedly sent photos and videos of President Lai's son and his family to Chinese officials.[7993696][7931764][7928217] The arrest was made just before Wanying Zhang departed for China, according to US officials.[7993696][7931764][7928217]