Michele Kelemen

Secretary of State John Kerry sets off for what he calls "a long overdue" trip to Russia on Monday, and Syria is likely to top the agenda.

But U.S.-Russian relations are frosty these days. The U.S. is imposing targeted sanctions on Russian human rights violators, while Moscow is preventing American families from adopting Russian children.

President Obama has been hosting a series of visitors from the Middle East, and all of them have been urging the U.S. to get more involved in Syria.

They have included the emir of Qatar, Sheik Hamad bin Khalifa Al Thani, whose country has been arming rebel forces in Syria. Obama wants to see such aid go to moderates — but that requires more cooperation with partners like Qatar. Problem is, they don't always see eye to eye.

In the coming weeks, the Obama administration plays host to the leaders of several Middle Eastern nations, including the United Arab Emirates, Turkey, Qatar and Jordan.

They are coming, in part, to register their concerns about the ongoing violence in Syria and to nudge the Obama administration to do more to tip the balance in favor of the rebels trying to oust President Bashar Assad.

Secretary of State John Kerry describes himself as a recovering politician. He's just getting used to the fact that he can't speak quite as freely as he did when he was a senator.

"Each word means more, each relationship is played differently," he said in an interview with NPR, at the end of a nine-nation swing through Europe and the Middle East. "As a senator, you just don't have those stakes riding in it."

U.S. Secretary of State John Kerry walked into a chaotic situation in Egypt, the first Arab country he's visited in his new role. The country is in economic and political turmoil, and he is trying Sunday to encourage Islamist President Mohamed Morsi to open up the political process and carry out much-needed reforms. After their meeting, he announced the U.S. would release $190 million in aid to Egypt.

Kerry has also been hearing complaints from opposition figures, who have vowed to boycott upcoming elections.

Secretary of State Kerry is in Rome for a meeting on Thursday with the leaders of Syria's opposition coalition. Ahead of the session, there are indications the U.S. is prepared to provide some direct aid to the coalition, including military hardware such as body armor and armored vehicles. The European Union is discussing similar aid.

John Kerry sets off Sunday on his first foreign trip as secretary of state, visiting Europe and the Middle East.

One dominant theme of the trip will be how to resolve the crisis in Syria, where an estimated 70,000 people have been killed over the past two years. Kerry is portraying his trip as a listening tour, and he expects to hear a lot about Syria.

He told reporters recently that he wants to talk with U.S. allies about how to persuade Bashar Assad to agree on peace talks that would end the Syrian leader's bloody rule in Syria.

Bulgarian authorities say they have evidence the Lebanese militant group Hezbollah financed and carried out a bomb attack at a Black Sea resort town last year, killing five Israeli tourists and one Bulgarian citizen.

Bulgarian Foreign Minister Nikolay Mladenov said it was an extremely intensive investigation.

"The results of that investigation leads to a number of persons who are connected to the military wing of Hezbollah," he said.

Hillary Clinton is preparing to leave the Obama administration after four years as secretary of state, earning generally high marks and fueling all kinds of speculation about what she wants to do next.

Her boss, President Obama, has paid tribute to her, calling her "tireless and extraordinary," though illness and a concussion have kept her out of public view for the past two weeks.

"More than 400 travel days, nearly 1 million miles," President Obama proclaimed at a diplomatic reception recently. "These are not frequent flier miles. She doesn't get discounts."

Long before President Obama nominated John Kerry as the country's top diplomat, the Massachusetts senator was seen as a secretary of state in waiting.

He has been chairman of the Senate Foreign Relations Committee and has frequently jetted off to Afghanistan and Pakistan whenever the Obama administration needed him.