Being able to tell the difference between 13 different handsets and being able to 'trace any cellphone' are two very different things. Pick 13 random people fr

Being able to tell the difference between 13 different handsets and being able to 'trace any cellphone' are two very different things. Pick 13 random people from the planet and you can tell the difference between them if you know their birthday (just day and month) that doesn't mean you can trace anyone if that's the only information you know. Good research, dumb article.