PBS NewsHour

Should the Ukrainian government attempt to move in on pro-Russian protesters who have occupied government buildings in three eastern cities, or do nothing and avoid provoking Russian forces? Judy Woodruff talks to David Herszenhorn of The New York Times in Moscow about Kiev’s options, the probability of another Russian incursion and mixed feelings in Ukraine about keeping it independent.

Echoing recent events in Crimea, protesters in three Russian-speaking Ukrainian cities stormed government buildings and called for a referendum to join Russia. Ukraine’s prime minister says Moscow is responsible for the new unrest, while Secretary of State John Kerry warned that further efforts to destabilize the country will incur further costs for Russia. Judy Woodruff reports.

In our news wrap Monday, there were cautious hopes of finding the missing Flight 370 aircraft when a ship picked up pings during its trawl of the southern Indian Ocean. Also, Oscar Pistorius took the stand to testify in his own murder trial. The South African Olympian is accused of killing his girlfriend, Reeva Steenkamp.

NewsHour takes another look tonight at the latest unemployment report. Bloomberg senior economist Nela Richardson speaks with Hari Sreenivasan about whether the the jobs counted as recovered are of the same quality as those lost in the Great Recession. Richardson says BLS analysis shows that nine of 10 jobs gained in March paid less than $44,000 per year.

A report published this week in Science magazine gave new details about the presence of water on Saturn’s moon Enceladus. Is it a sign of the possibility of life elsewhere in our solar system? One of the article’s authors, David Stevenson of the California Institute of Technology, speaks with Hari Sreenivasan about the implications of the findings.

‪Mexico is now the third biggest trading partner of the United States. But with poverty afflicting half of the country's 120 million people, the country faces an uphill battle toward future prosperity. Correspondent Martin Fletcher reports from Querétaro.‬

Millions of voters came out for the presidential elections in Afghanistan on Saturday in the country’s first democratic transfer of power since the Taliban were ousted from power. The scene varied throughout the country with violence reported in some areas and ballot shortages in others. Hari Sreenivasan speaks with Kevin Sieff, the Washington Post’s bureau chief in Kabul.

Viewers respond to teacher tenure report

Elizabeth Meriwether was approached by Madeline Schwartzman on the subway and asked to write a poem. Here she reads “Outpouring of My Emotion?”

Madeline Schwartzman’s mission is connect people in what she sees as an increasingly individualized society. Every day as she travels by subway Madeline asks fellow commuters to write a poem in her notebook. Some refuse, some accept, and now more than 100 of their poems are posted on Madeline’s website, 365 Day Subway: Poems by New Yorkers.

Each year about 42 million tax returns are prepared by tax professionals who are unaccredited and unregulated by the IRS. After a plan to regulate them was struck down by a federal court last year, there's more regulation on hairdressers in most of the country. Critics say this leaves low-income taxpayers particularly vulnerable. But does licensing tax preparers mean tax preparation will improve?

Veteran AP journalists Anja Niedringhaus and Kathy Gannon were traveling with election workers, soldiers and police in Khost province in Afghanistan when a police commander approached and shot them. Niedringhaus, a Pulitzer Prize-winning photographer, was killed and Gannon was hospitalized. Kathleen Carroll, executive editor of The Associated Press, remembers Niedringhaus with Hari Sreenivasan.

Syndicated columnist Mark Shields and New York Times columnist David Brooks join Judy Woodruff to discuss the week’s news, including a Supreme Court ruling that lifts campaign donation limits, as well as public commentary for a pro-baseball player’s paternity leave.

Despite some progress in the treatment of Afghan women since the 2001 fall of the Taliban, there are thousands of females accused of so-called moral crimes who have been jailed or have fled to safe houses in fear of their lives. The Center for Investigative Reporting teams up with filmmaker Zohreh Soleimani, who has directed a documentary, "To Kill a Sparrow,” that sheds light on their oppression.

Much of the stock market trading that occurs today is done with computer servers, completing hundreds of millions of orders in a system known as high-frequency trading. Author Michael Lewis has made this practice the subject of his latest book, “Flash Boys: A Wall Street Revolt.” He joins Judy Woodruff for a discussion about Wall Street trading and reform.