Read the passage carefully. Which sentence best incorporates a direct quote from the passage? The question is "what the United States of America and the international community is prepared to do" about the attacks.
Obama notes that "what happened to those people" threatens US national security.
Actions against Syria are justified because, as Obama argues, US troops "would again face the prospect of chemical warfare on the battlefield."
"As the ban against these weapons erodes," other leaders might use them.