In 2014 cyber-security gained widespread attention when a group calling itself the Guardians of Peace hacked _________________, leaking thousands of documents and emails.

In an effort to gain influence in the world, it would be feasible to expect Taiwan to __________.

A. unilaterally declare independence and seek support from the United Nations B. grant conditional foreign aid to several small and poor countries in the world C. create an alliance with Russia and ask for admission to various international organizations D. withdraw from the Non-Proliferation Treaty and begin enriching uranium

__________ is the power of the courts to invalidate laws of Congress or the states that conflict with the U.S. Constitution

Fill in the blank with the right word.