Apple vs the FBI - level 1
There is a shooting. It happens in the USA. The killers have iPhones. The FBI investigates the killers. The FBI has the iPhones of the killers. But it cannot unlock the iPhones. The FBI asks Apple for help.
Apple wants to help. The situation is complicated. To unlock the iPhones, Apple must write a piece of software. This software can unlock the two iPhones.
However, this software is bad. It can unlock the two iPhones. But it can also put millions of iPhones in danger.
Tim Cook is the boss of Apple. He says that the software is like cancer. Apple does not want to write this piece of software.
Difficult words: shooting (a situation when somebody shoots a lot of people), investigate (to get more information about something), unlock (to get in something), cancer (a very bad disease).