RAINN carefully vets, trains, and monitors the performance of all staff members.

The service is completely anonymous and confidential—we will never ask you for any information that would identify who you are.

Chat slang is a method of typing long words and phrases as short one-to-four letter words and is also used by people who have difficulties spelling.

For example, instead of typing out "are", someone may only type "r." Although chat slang can be easier for you and sometimes faster to type, it makes it difficult to read and most people will ignore you.

Facebook's extensive but little-discussed technology for scanning postings and chats for criminal activity automatically flagged the conversation for employees, who read it and quickly called police.

Officers took control of the teenager's computer and arrested the man the next day, said Special Agent Supervisor Jeffrey Duncan of the Florida Department of Law Enforcement.