There is also the thorny question of how Facebook could comply with the Children's Online Privacy Protection Act ( COPPA ) in America, which was designed to protect children under 13 as they use the internet. 另一个棘手的问题便是脸谱网会如何遵守《儿童网络隐私权法案》(COPPA),该法案旨在对13岁以下使用因特网的儿童进行保护。