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 容易被人偷盜的東西
at the touch of a button 只需一觸按鈕就可以…