It's serious <a href=" http://inebolutso.org.tr/imitrex-tablets-prescribing-information.pptx#chivalrous ">imitrex nasal spray coupon</a> Samantha Power, whom President Barack Obama nominated Wednesday to be the next U.S. ambassador to the United Nations, is a longtime human rights advocate who isn&rsquo;t expected to face the same Senate opposition over Libya that dogged the current U.N. envoy, Susan Rice.