I'm in McMurdo, and so far everything is on schedule for me to return to Chicago on ~6 am on December 21st.  Tonight should be my only night in McMurdo, but as of midnight McMurdo time my flight departure time to Christchurch is still "TBD" (to be determined).  Hopefully we are out tomorrow, but there are no guarantees yet, apparently there are some weather issues that could delay us.  If we don't make it out tomorrow, the following day is Sunday (there are no flights on Sunday), so it would be a two day delay, meaning I couldnt get into Chicago until Decmber 23rd at the earliest.   Wish me luck!