When investigating a crime, police can follow a trail of phone calls and e-mails, but text messages are much harder to track down.
Now there's a controversial new push to persuade Congress to make it easier to see what you're typing and receiving on your cell phone.
Several law enforcement groups want a law that says your phone carrier has to record and store your text messages.
As of now major carriers like AT&T and Spring get rid of text messages immediately. Verizon keeps them for up to five days.