Although the U.S. focus remains on exerting diplomatic and economic pressure on Syria, the Pentagon and the U.S. Central Command have begun a preliminary internal review of U.S. military capabilities, CNN has learned.
Arizona Sen. John McCain, the top Republican on the Armed Services committee, told reporters Tuesday that the U.S. should consider "all options including arming the opposition."

But U.S. officials said that adding weapons into the volatile and violent situation is not a viable option.

"We never take anything off the table. The president does (or) doesn't. However, as the president himself made absolutely clear and as the secretary has continued to say, we don't think more arms into Syria is the answer," said State Department spokeswoman Victoria Nuland.
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