China has dangled security agreements and cooperation on communications and cybersecurity before 10 Pacific nations. The Federated States of Micronesia has warned them not to go along with China. Also, Pfizer's COVID-19 vaccine has made the company a lot of money — tens of billions of dollars in sales. Those dizzying returns have led to accusations of pandemic profiteering. Also, the Marcos family looted an estimated $10 billion from the Philippine government in the 1970s and '80s. Now, the Marcos family is back in power and once again, flaunting its wealth. And, spoken communication is not just a human gift. Chimpanzees have a 400-word language, according to new research published in the journal Communications Biology.

Following the mass shooting on Tuesday at an elementary school in Texas, US Senator Chris Murphy gave an impassioned speech to Congress highlighting America's exceptionality when it comes to gun violence when compared to other countries. And around the world, few treatments exist for long COVID. In the UK, a group of medical specialists and professional opera singers are examining if opera singing can help with the debilitating symptom of breathlessness. Plus, the day after 19 children were murdered in Texas, 12-year-old Noah Green sings a healing Cree song with his grandmother that goes viral.

It’s been three months since Russia began its invasion into Ukraine on Feb. 24. Most of the fighting has shifted to areas in eastern Ukraine such as the Donbas and Kharkiv regions. And a trove of leaked police files and photos from Xinjiang, in western China, has revealed more than 2,800 mugshots of Uyghur detainees in what China terms "reeducation" camps, along with a shoot-to-kill policy for those who try to escape. Plus, hospital sounds like alarms and beeping monitors can be detrimental to doctors and patients alike. A group of psychologists, designers and musicians are reimagining the future of hospital sounds.

President Joe Biden said during a summit in Tokyo that the US will get involved militarily in the event that China attacks Taiwan. Beijing responded by expressing opposition to the comments. And, new technology often gets tested in war zones. In Ukraine, one particular form of technology has taken hold within the Ukrainian army — facial recognition. Plus, a sobering statistic: 100 million people have now been forcibly displaced worldwide due to conflicts and crises. Refugees from Ukraine make up about 6.4 million of the tally.

US President Joe Biden arrived in South Korea on Friday and will meet with leaders from Japan, Australia and India on his first trip to Asia as president. The White House seeks to rally its allies in Asia to send a message to China against bullying its neighbors. And the UN human rights office has confirmed 8,000 civilian casualties in Ukraine, including 3,800 deaths, since Russia invaded the country 86 days ago. Most of the fighting now is in the Donbas region of eastern Ukraine. Plus, Russian President Vladimir Putin has challenged the validity of Ukrainian culture and identity. Olga Pariieva, a language teacher, weighs in on what it means to speak Russian in Ukraine.

On Monday, 260 Ukrainian fighters surrendered at the Azovstal steel plant in Mariupol. The troops were taken to areas under Russian control and now face an uncertain fate. Also, Secretary-General António Guterres says that the COVID-19 pandemic and the war in Ukraine has fueled unprecedented world hunger. In just two years, the number of food-insecure people has doubled to over 276 million worldwide. And Australian bands Hermitude and The Jungle Giants have teamed up to create a feel good vibe with their tune, "When You Feel Like This."

For weeks now, baby formula has been hard to find in some US states. Amid pandemic supply chain issues and a formula plant shutdown, global trade policy is also responsible for the crisis. And on Tuesday, an armed opposition group tried to take power in Tripoli, Libya’s capital, sparking armed clashes between rivals. We hear about the challenges Libya faces toward the establishment of a unity government. Plus, Biniam Girmay of Eritrea became the first Black African to win a stage of one of cycling's Grand Tours. But he had to pull out of the race after a freak eye injury at the winner’s podium.

Ukrainian troops in Mariupol fought against Russia's military onslaught for more than 80 days. Now, after weeks of siege at the Azovstal steel plant, the last Ukrainian fighters mounting Ukraine's resistance have ended their defense. And as Sweden and Finland take steps toward joining the NATO military alliance, NATO member Turkey is saying no. We hear about the factors behind Turkey's decision and what it means for NATO. Plus, fuel is running critically low in the island nation of Sri Lanka. The country’s new prime minister warns that only a day’s fuel supply remains.

Sweden has announced its intent to apply for NATO membership in an historic break with its neutral security policy in the wake of Russia’s invasion of Ukraine. And Turkey is closely watching Pennsylvania’s Senate race as Dr. Mehmet Oz, a dual Turkish and US citizen, edges ahead in recent polls for the state’s Republican primary on Tuesday. Opponents accuse the TV-doctor-turned-politician of conflicting loyalties. Plus, the mass shooting in Buffalo, New York, over the weekend is not simply a domestic phenomenon. A growing, global network of extremists online played an important role in the shooter’s radicalization.

On Friday, a Russian soldier appeared in court for the first time since Russia invaded Ukraine. Vadim Shishimarin, 21, stands accused of committing war crimes in a district court in Kyiv. And mourners were attacked by Israeli police during the funeral procession of Al Jazeera journalist Shireen Abu Akleh in Jerusalem on Friday. The police claimed that rocks and projectiles were thrown at them. Plus, Princeton University researchers have discovered which chemical compounds in human odor cause mosquitoes to zero in on people and spread mosquito-borne diseases.