I am Mark Colvin, Presenter of PM, radio current affairs program for the Australian Broadcasting Corporation. I'm Twitter's @Colvinius, kidney transplant recipient and Lifetime Lance-Corporal in the Awkward Squad.
My short bio: This year I celebrate 40 years at the ABC. I first joined radio news as a cadet, after graduating from Oxford University. For more detail visit my biography at http://www.abc.net.au/pm/about.html but in short, after years in various journalistic roles, I took up the position of presenter for PM. I love PM because it has the space to explore a wide range of the day's issues in more details and with more depth than the soundbite sausage-machine.
PM airs weekdays, first at 17.00 (AEST), followed by a longer program at 18.10 (AEST).
To listen in you can tune to ABC Local Radio or Radio National, connect to the live stream from the PM website: www.abc.net.au/pm, or subscribe to PM's podcasts.
Highlights and extras make their way to PM's Facebook page: https://www.facebook.com/ABCPM.au
You can also follow the program on Twitter @amworldtodaypm or myself @Colvinius
EDIT: That's an hour and a half of intensive typing. Thanks to all those whose questions I answered and apologies if I didn't manage to address yours.
Big thanks to Rhiannon Treasure-Brand for facilitating this AMA. Maybe we can do it again another day.