South Carolina Republican Sen. Lindsey Graham said Monday he will block President Barack Obama’s nominees for executive branch positions until survivors of the 2012 attack on the U.S. consulate in Benghazi testify before Congress.
The US embassy in Benghazi was protected by Libyan security staff rather than Americans as a way of cutting costs, and that's one reason cited for the four Americans deaths on Sept 11, 2012.
After the attack, Obama asked Congress to approve an extra $4 billion to secure US embassies. That has not happened. It was raised in the Senate by Robert Menendez, but hasn't been brought to the floor for a vote.
3. The above two stories are completely unrelated.