WASHINGTON (AP) - For the first time in more than two years of a bloody civil war, President Barack Obama has declared Syria a national security threat that must be answered with a military strike - and in doing so he is warning Americans as much about the leaders of Iran and North Korea as about Bashar Assad.
America's credibility with those countries will be an immediate casualty if it stands down now on Syria, administration officials say in making their case for U.S. missile strikes.
Following an Aug. 21 chemical weapons attack outside Damascus, the White House declared Syria's 2-year civil war a top risk to American interests. If the U.S. fails to respond, officials said this week, it could encourage other hostile governments to use or develop weapons of mass destruction without fear of being punished.
Sen. John McCain, R-Ariz., speaks during a town hall meeting Thursday in Phoenix.
It's a connection that's not immediately clear to many Americans - especially after the White House refused to send military support earlier in the Syrian war. The recent chemical weapons attack killed 1,429 people, U.S. intelligence officials say. Other estimates are somewhat lower. The wider war has killed more than 100,000.
In House and Senate hearings this week designed to seek congressional approval to strike Assad 's government - probably with cruise missiles but not with ground troops - top administration officials pleaded with skeptical lawmakers to consider the risks of doing nothing.
"Iran is hoping you look the other way," Secretary of State John Kerry told the Senate Foreign Relations Committee. "Our inaction would surely give them a permission slip for them to at least misinterpret our intention, if not to put it to the test. Hezbollah is hoping that isolationism will prevail. North Korea is hoping that ambivalence carries the day."
"They are all listening for our silence," Kerry said.
Defense Secretary Chuck Hagel raised the possibility that Assad's chemical weapons stockpile, considered one of the world's largest, could be seized by his allies, including the Lebanon-based militant group Hezbollah. "We cannot afford for Hezbollah or any terrorist groups determined to strike the United States to have incentives to acquire or use these chemical weapons," Hagel told the House Foreign Affairs Committee.
Vali Nasr, a former senior official in Obama's State Department, said Syria's spiraling death toll, the rise of fighters in Syria associated with al-Qaida and other extremist groups, and pressure on neighboring nations from a flood of refugees have already threatened U.S. security interests for years.
"For a very long time we reduced Syria to just a humanitarian tragedy that, as bad as it was, was not a sufficient cause for American involvement," said Nasr, now dean of the Johns Hopkins School of Advanced International Studies. "That meant we ignored all the other ways in which Syria was a national security threat. And for two years we tried to minimize the impact of Syria, and now all of a sudden the administration finds itself in the position of having to give sufficient urgency to Syria to justify action."