He was killed in an attack on the US consulate in Benghazi last September.
Four Americans, including Ambassador Chris Stephens, were killed during an attack on the US consulate in Benghazi, Libya.
Republicans had fiercely criticised her response to last September's deadly attack on the US consulate in Benghazi, Libya.
In March, the FBI spoke to the former soldier in three voluntary interviews at the US consulate in Istanbul.
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Mr Romney barely touched on last month's deadly assault on the US consulate.
On 11 September, US ambassador Chris Stevens and three other Americans died during an attack on the US consulate in Benghazi.
They have been blamed for the attack in September on the US consulate in Benghazi which left ambassador Christopher Stevens and three others dead.
Last week, a US congressional committee heard US security in Libya was reduced before the attack on the US consulate, even as violence worsened.
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Last week the FBI released photos of three men it says were on the grounds of the US consulate in Benghazi when it was attacked last year.
The owner of a local tow-truck company, Moti Matmon, told the UK's Daily Telegraph that the US Consulate in Jerusalem had asked him to recover the vehicle.
Speaking to US consulate workers in Istanbul, Mr Kerry said Ms Smedinghoff's death was a "grim reminder... of how important, but also how risky, carrying the future is".
Ms Rice had been at the centre of Republican criticism over the Obama administration's response to a deadly attack on a US consulate in Libya earlier in the year.
The hearing - which centred on the attack on the US consulate in Benghazi, Libya, in September 2012 - is likely to be Mr Panetta's last before he leaves office.
Britain has not had a diplomatic presence in Benghazi - Libya's second largest city - since an attack on the US consulate in Benghazi on 11 September when the US ambassador and three other Americans died.
South Carolina Senator Lindsey Graham also said he would continue to use the confirmation vote as leverage in his effort to wring more information from the White House about the response to the 11 September attack on a US consulate in Benghazi, Libya.
Lesley Enriquez - a US citizen working at the Juarez consulate - her American husband, Arthur Redelfs, and Jorge Alberto Salcido, the Mexican husband of another consular employee, were shot dead in two separate incidents on 13 March in the border city of Ciudad Juarez.
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The Obama administration asked us to believe that the fatal attack on our Benghazi consulate was by an unorganized mob enraged by an anti-Islam film.
Mrs Clinton's time in office will also be remembered for the attack last September on a consulate in Benghazi, Libya, that killed a US ambassador and three other Americans.
Agents from the US, plus Spain and France - who both lost nationals in the attacks - and Belgium, whose consulate was among the targets, have sent intelligence experts to the country.
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