One hour 10 minutes at 6am to get to NW/CO/DL on the C councourse. The other couple times I've flown out of C (incl. Thanksgiving weekend), 5 minute wait. This is ridiculous. I understand the need for more security but it's been over three months and the passenger loads the day after Christmas are entirely predictable. Having wildly varying checkpoint passthrough times is unaccaptable at this point. BWI needs to get its act together ASAP.