Watch For Yourself: The 5 Biggest Moments From the Mandela Memorial

On Tuesday, tens of thousands of people gathered for the national memorial service for Nelson Mandela, a man President Obama called "a giant of history, who moved a nation toward justice." The service for Mandela, which is part of a week of commemorations of the South African leader's life, took place in Soweto's FNB Stadium and attracted 91 heads of state.

All that hobnobbing between the world's most distinguished leaders produced some great spectacle. From Obama's handshake with Cuban President Raúl Castro to the jeering South African President Jacob Zuma received from the crowd, here five great moments from Tuesday's memorial.

Obama's handshake with Castro

While the world waited with bated breath to witness a handshake between Obama and Iranian President Rouhani, interest has all but waned in an older rivalry: the tense relationship between the United States and Cuba. On Tuesday, that animosity was forgotten, if only for a moment, as Obama shook Raul Castro's hand on his way down a line of dignitaries. More touching than the handshake, though, was the joke or small talk that was evidently exchanged between the two men. You can watch the moment at about twelve seconds into this clip:

Zuma gets booed

Crowds of onlookers erupted in jeers when South African President Jacob Zuma's image flashed across the stadium's big screen -- made even worse by the cheers that Obama's image drew just moments before. The South African attendees were likely expressing frustration with current South African politics, plagued by rampant corruption and stark inequalities. Many black South Africans still live without basic services and adequate housing, despite reassurances from the ruling African National Congress party that their situation has improved in recent years.

When it was Zuma's turn to speak, the heckling became so bad that his image on the big screen was replaced with one of Mandela.

Here's the video of Zuma drawing boos shortly after the crowd erupts for Obama.

Obama's selfie

Obama's speech may have called for a time of mourning and self-reflection, but he was spotted at the service looking a bit less than somber at times -- like when he was taking a selfie with Danish Prime Minister Helle Thorning-Schmidt and British Prime Minister David Cameron. Perhaps it was only a belated nod to the Oxford English Dictionaries Word of the Year award.

Obama's speech

Obama eulogized Mandela as a man of eloquence and self-control. One of the speech's highlights came in the conclusion, when Obama referenced the poem "Invictus," a favorite of Mandela's:

"And when the night grows dark, when injustice weighs heavy on our hearts, when our best-laid plans seem beyond our reach, let us think of Madiba and the words that brought him comfort within the four walls of his cell: ‘It matters not how strait the gate, how charged with punishments the scroll, I am the master of my fate: I am the captain of my soul.'

What a magnificent soul it was."

See the full speech below:

'The awesome power of forgiveness'

It's not every world leader that gets eulogized by the United Nations secretary-general, who spoke of Mandela's forgiveness and his effort to bring South Africa after the turbulent apartheid years. "He showed the awesome power of forgiveness -- and of connecting people with each other and with the true meaning of peace," he said. "That was his unique gift, and that was the lesson he shared with all humankind. He has done it again. Look around this stadium and this stage. We see those representing many points of view and people from all walks of life. All are here. All are united today." Watch the video here:



Chinese Hackers Are Luring Diplomats With Promises of Porn

Let's say you're a spy working for a major international power, and you'd like to gain access to the internal deliberations of a certain group of foreign ministries. Ideally, you'd like to provide the head of your government with information about foreign governments' trade deliberations and the negotiating position these countries are likely to adopt at an upcoming trade summit.

How would you go about obtaining this information? You could of course scour open source information -- press reports, statements by country leaders, etc. -- for clues as to how they will approach the negotiations. You could also attempt to recruit informants at these nations' embassies in your own country. Or you could recruit someone within the relevant ministries.

But upon consideration you realize that these tactics are either unlikely to deliver the results you're looking for or are just too risky. Wouldn't it just be easier if you could tap into foreign ministry servers and steal the documents or emails with the information you need?

That calculation is partly why hacking activities on behalf of sovereign nations has skyrocketed. But that increase in hacking has also come with a twist on age-old spy techniques. In a scheme that came to light Tuesday, the computer security firm FireEye revealed that Chinese hackers managed to gain access to the foreign ministry servers of five European countries by sending their diplomats emails with a link that promised to provide naked photos of Carla Bruni-Sarkozy, the wife of former French President Nicolas Sarkozy.

In short, a classic spy trick has gone digital.

The use of attractive, alluring women -- and a fair number of men -- is a proven tool of spycraft. In 1986, when an Israeli technician travelled to London with the intent of exposing his country's nuclear program to the London Sunday Times, Israel dispatched a female agent. The paper stashed him a house in the suburbs of London while the attempted to verify his story, but before they managed to do so, the technician, a man by the name of Mordechai Vanunu, told the Times that he had met a woman -- the agent, of course, -- and that they would be going to Rome for the weekend. While there, he was seized by Israeli agent and shipped back to Israel for a prompt trial on charges of treason.

But the Israeli operation, while elegant, pales in comparison to other honey trap operations. During the 1950s, the notorious East German spymaster Markus Wolf developed a cadre of spies consisting of his most handsome, intelligent spies. He nicknamed them his "Romeo spies," and they were sent into West Germany to seduce the increasing number of women headed toward positions of power in post-war Germany. With a dearth of men following the war, women were suddenly ascendant in German society, and this created an opportunity for Wolf. The plot was wildly successful. One agent developed through the Romeo program passed information on the West's deployment of nuclear weapons. Another managed to place herself as a secretary in the office of the West German chancellor at the time, Helmut Schmidt.

Now, Chinese hackers have taken the same concept and put a digital spin on it. But rather than having to go through the long process of creating a fictitious relationship, the digital lure simply trades on the basic sex drive of straight, male European diplomats who have probably all found their minds wandering toward the lithe figure of Bruni during one interminable European summit meeting or another.

Markus Wolf is probably smiling from his grave.

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