Learn Two Words: Balk & Booze

Do you know these two words: balk & booze? Try to figure out the following headlines:

Afghanistan's Karzai Balks at Post-2014 Agreement for U.S. Forces
http://www.usnews.com/news/articles/2013/11/26/afghanistans-karzai-balks-at-post-2014-agreement-for-us-forces

Twitter's Age Verification System Wants to Keep Kids Away from Booze
http://mashable.com/2013/11/26/twitter-age-verification/#!

Surfer_Diver
2013.11.26