The Wall Street Journal elaborates:
State Department investigators discovered numerous security deficiencies in global hot spots when reviewing U.S. diplomatic facilities in 2012 and 2013, suggesting problems were more widespread than previously known.
...The review, which hadn’t been made public before, was undertaken from April to October 2012, toward the end of Hillary Clinton ’s tenure as secretary of state. It provides the best snapshot of security when the U.S. compound in Benghazi, Libya, was attacked in September 2012, leading to the deaths of four Americans, including the U.S. ambassador to Libya.
Congressional panels investigating the Benghazi attacks concluded that State Department officials didn’t beef up security despite requests from diplomats in Libya. The reviews suggest such problems went well beyond Benghazi.
Security lapses at U.S. embassies are a point of vulnerability for Mrs. Clinton should she run for president. GOP lawmakers and activists have sought to tie her explicitly to security failures.
“The inspector general’s findings reveal that on Secretary Clinton’s watch, security lapses were widely prevalent in the most dangerous posts in the world, not just isolated to the failures that precipitated the attack in Benghazi,” said Tim Miller, executive director of America Rising, a group that opposes a potential Clinton candidacy. The group’s open-records requests led to unsealing of parts of the previously classified reports.
...The State Department committed an estimated $90 million to send Marines to six lower-threat posts, while some high-threat posts remain without a Marine detachment, the report said.
If you want to see something truly gut-wrenching, please review the Complete Benghazi Timeline Spreadsheet.