Kill your phone 美国加州新法案 智能手机将安装“自杀开关”
2014年 9月 3日 最后更新时间：10:01 GMT
Smartphones are everywhere, but they're easy pickings for criminals.
Here in San Francisco, high-end handsets are specifically targeted in more than half of all robberies.
Now, a new law means that smartphones in California will be required to have a "kill switch" which will make them useless if lost or stolen.
At the touch of a button, all the data on the phone is erased.
It's hoped this will help deter thieves, though some think the law will create other problems.
easy pickings 容易被人偷盗的东西
at the touch of a button 只需一触按钮就可以…