JUDY WOODRUFF: And in the other news of this day, the showdown in Washington sparked a sell-off on Wall Street. The Dow Jones industrial average lost 185 points to close at 15451. The Nasdaq fell 14 points to close at 3,774. For the week, the Dow gained about half-a-percent. The Nasdaq rose 1.5 percent.
The Obama administration has laid out the first national limits on carbon pollution from power plants. Under the proposal, new coal-fired plants would have to prevent up to half of their carbon dioxide from escaping into the atmosphere. The power industry condemned the plan; environmental groups welcomed it. We will have more on this in a moment.
Chicago police fanned out today, hunting culprits in a shooting that wounded 13 people in a city park. The youngest, a 3-year-old boy, remains in critical condition. Witnesses reported bullets were fired from a passing car. The city's police superintendent said the attack looks gang- related. And he called for action to prevent mass shootings.
GARRY MCCARTHY, Chicago police superintendent: Military-type weapons like the one we believe to have been used in this shooting belong on a battlefield, not on a street or in a corner or in a park in the back of the Yards.
This country should have a ban on assault weapons and high-capacity magazines like the ones used in this event. It's common sense.
JUDY WOODRUFF: Chicago had a surge of shootings and homicides last year. Overall, violent crime is actually down so far this year.
In Yemen, al-Qaida militants killed 38 government troops and wounded dozens more today. It happened in the southern province of Shabwa in a remote area that was blanketed in heavy fog at the time. The attackers wore army uniforms and hit several military sites.
A top Israeli official is warning that Iran could build a nuclear bomb within six months, despite Tehran's diplomatic overtures. The Israeli strategic affairs minister, ®MDNM¯®MD-BO¯Yuval Steinitz, issued the warning today in an Israeli newspaper. He said -- quote -- "There is no more time to hold negotiations."
In Washington, the State Department's Marie Harf said the Obama administration is not ready to go that far.
MARIE HARF, State Department: We are committed to preventing Iran from getting a nuclear weapon, that all options are on the table to do that, but, obviously, diplomacy is the preferred one, and that there -- we're not out of time here yet. On diplomacy, obviously, we'd like to give it a chance to work, and we believe there's an opportunity right now to do just that.
JUDY WOODRUFF: For his part, Iranian President Hassan Rouhani called for constructive interaction today.
Writing in The Washington Post, he said: "We must work together to end the unhealthy rivalries and interferences that fuel violence and drive us apart."
Rescue parties in Mexico kept hunting for mudslide victims today in a village north of Acapulco. Emergency workers dug through the mud and debris for 68 people who've been missing since a mountainside gave way. The disaster was triggered by a tropical storm. The resulting flooding and mudslides have killed at least 97 people, all told.
Pope Francis denounced abortions today and urged Roman Catholic doctors not to perform them. The remarks came one day after he warned the church against emphasizing what he called small-minded rules.
He spoke today in an audience with Catholic gynecologists.
POPE FRANCIS (through interpreter): Dear friends, doctors, those of you who are called to deal with human life in its initial phase, remind everybody, with facts and words, that this, life, is always, in all its phases, in every age, sacred.
JUDY WOODRUFF: Before today, some leading Catholic conservatives voiced disappointment that Francis had not spoken out about abortion.