To many people, it's the defining image of the Tiananmen crackdown: a single man staring down a line of tanks.
"Tank Man" photographer Jeff Widener recalls what it took to capture that moment.
"I had to get a bicycle and go all the way down past soldiers and tanks and sporadic gunfire in the distance," Widener says. "And then you had to get past secret police, who were using electric cattle prods on the journalists if they didn't give up their supplies."
Of course, getting the photo out to the world was also extremely difficult. Click here to find out how he did it.
Widener also remembers the sense of hope among those student protesters in 1989.
"What struck me as something very dramatic was the building of the Goddess of Democracy," he says. "Because there you have the symbol of freedom, which is basically a duplication of the Statue of Liberty. And that is facing right across the street from the Mao portrait at the Forbidden City."
But, Widener adds, that he and other journalists wondered how long it would be until the Chinese government refused to tolerate the face-off any more.
Before his arrest in 2009, Nobel Peace Prize laureate Liu Xiaobo would write a poem every year to commemorate the 1989 Tiananmen crackdown.
The poems have been translated into English by Jeffrey Yang and published in the compilation, "June Fourth Elegies."
I talked to Yang about Liu Xiaobo's poetry, and the power of poetry to remember an event that has been publicly erased in China.
In an unassuming office building in Hong Kong, is the world's first museum dedicated to the Tiananmen crackdown of 1989.
Let's go inside.
Many CNN viewers know him as Mira Sorvino's guide in "Every Day in Cambodia," the 2013 CNN Freedom Project documentary that fixed a spotlight on child sex trafficking in the country.
American activist Don Brewster has dedicated his life to saving Cambodia's children. As the founder of Agape International Mission, he has helped rescue hundreds of girls from sexual slavery.
In Hong Kong, I talked to Brewster about how he tracks down Cambodia's enslaved girls, helps to rebuild their lives, and equips local communities to join the fight against the despicable trade.
Brewster also tells me about the impact of the Freedom Project documentary, and how it has led to justice for some of the girls in Cambodia.
This week, the Hong Kong government started to destroy almost 30 tons of confiscated ivory.
It is destroying the massive stockpile by burning it. Officials plan to incinerate about three tons of illegal ivory a month. The process is expected to take at least a year.
Ivory has long been valued in China for making prized seals and carvings - turning China into a global hub for the illegal ivory trade.
So can this high-profile government program send a strong enough message to end the public's appetite for elephant tusks?
I talked to wildlife activist Sharon Kwok for her reaction to the campaign.
The U.S. Federal Communications Commission has voted to move forward with a proposal that could create Internet "fast lanes." Now the FCC will collect public comments on the new rules for net neutrality.
There have long been concerns that the rules would undermine an open Internet where all content is treated equally, and instead allow companies to pay for priority access.
A Twitter chat earlier this week reveals that the FCC is concerned about protecting an open Internet and is considering all options.
FCC Chairman Tom Wheeler tweeted, "Title II is a viable option we’re considering. We are listening and welcome continued discussion. #FCCNetNeutrality"
That's a reference to Title II of the Communications Act. Currently, broadband Internet is not bound by those common-carrier regulations.
Our regular tech contributor Nick Thompson, editor of the NewYorker.com, points out that there are two ways to for the FCC to safeguard net neutrality: pass new rules that could get bogged down in court, or reclassify Internet providers as public utilities under Title II.
Click on to hear Nick break down the issues at stake and the options for the FCC.
It has been 30 years since the United Nations adopted the Convention Against Torture, which commits all governments to combating the abuse.
And yet, torture remains widespread across Asia.
Amnesty International reports there are at least 23 Asia-Pacific countries still carrying out acts of torture. It adds that the true number is likely to be higher.
The human rights group says China and North Korea are among the worst offenders.
Torture is also used to force confessions or silence activists in other countries in the region including India, Indonesia, Malaysia, Pakistan, Sri Lanka and Vietnam.
What is needed to finally stop torture?
I posed that question to Roseann Rife, East Asia Research Director of Amnesty International. Click on to hear her thoughts on what can finally end the brutal practice.
Alibaba has filed its IPO in New York to raise $1 billion, but former Alibaba CEO David Wei is confident it will raise even more than Facebook's $16 billion bonanza.
Though many anticipate a blockbuster IPO, industry watchers also expect significant challenges ahead for the Chinese e-commerce giant.
How will Alibaba address concerns about the amount of counterfeit goods sold by its users - concerns that prompted Wei to resign after a fraud inquiry in 2011?
And how will Alibaba manage the shift to mobile, especially given the threat from Tencent's WeChat - the Chinese mobile app already on its way to becoming a global brand?
Click on for my conversation with China tech investor and former Alibaba CEO, David Wei.
(His catchphrase to describe founder Jack Ma may raise an eyebrow!)
Sometimes it feels like everyone is wearing a fitness band on their wrist, whether it's the Fitbit Flex, Jawbone Up or Nike FuelBand.
But now there are reports that Nike might kill the FuelBand.
Why would Nike kill an apparently popular gadget?
The New Yorker's Nicholas Thompson suggests that Nike might be trying to pull out of dedicated fitness bands before they're replaced by other wearables - such as the much-hyped Apple smart watch.
"Think about the Flip video camera, which was a huge sensation, everyone thought they'd be huge. And then suddenly the iPhone can take videos that are just as good, and Flip went away."