Truths and lies

Found on Delayra's blog, via Claw Marks: Four truths and a lie.  Which is the lie?

1. I know how to make an atomic bomb
2. I used to be left handed
3. I can count to ten in Latin
4. I was born in New Zealand
5. I learned to knit at age seven

Put your guesses in the comments, I'll answer later in the week.