The maker of the most popular smartphone system says it's against helping the FBI hacking into the iPhone of the San Bernardino shooters.

It's not Apple, though – it's Google.

Google's Android system operates on a majority of smartphones in the U.S. and the world, like Samsung Galaxies and Google's Nexus line.

But what if the San Bernardino shooters were like most Americans and had one of those phones in their hands? Would it be just as secure?

Mark Bergen from the technology site ReCode explains that the answer is complicated because different versions of Android run on different phones, and some are more tightly locked than others.