If you're backpacking or overlanding, bring printed maps as a backup for digital mapping apps.

如果你是背包旅行，或者陆路旅行，那么还要携带一份打印的纸质地图，作为数字地图应用程序的备份。

Then he found a digital mapping program.

然后他找到了一个数字地图程序。

The author reckons that Google Earth and other digital mapping applications are just as vulnerable as their predecessors to national priorities and cultural norms.

作者认为，谷歌地球以及其他的数字制图程序与其前身一样，在国家利益和文化传统面前都显得脆弱不堪。