Iraq: Top Saddam aide may have been killed

Officials push to shield body camera video

High school newspapers forced to fold

U.S. Army trainers arrive in Ukraine

Review of Comcast deal is said to raise concerns

A plane that can fly itself?

Once-prized Tibetan mastiffs discarded as fad ends in China

Wreckage fish quarantined; boat may be tsunami debris

Nation & World briefing

Study

Chemistry deepens bond with our dogs

Messenger spacecraft will soon crash on Mercury, NASA says

Today in history, and birthdays

Inside the Clinton campaign’s data-gathering machine

Mix of curiosity and outrage after pilot buzzes capitol

Nearly a third of dropouts are going to work

How trust is driving the new economy

Feds issue new employee guidance on social media

Ebola researchers take new look at risk of sexual transmission

Turkey’s century of denial about an Armenian genocide

Nation & World briefing

Anniversary

20 years after the bombing, Oklahoma City is changed

Report: E-cigarette use rises sharply among teenagers

Today in history, and birthdays

Gyrocopter lands on U.S. Capitol lawn

Tensions flare between allies in U.S. coalition

Iran assails U.S. plan for a vote in Congress

Pay protests pose a test for unions

Boston Marathon is celebrated as victims’ memory is honored

Editor’s choice

At new Watergate Hotel, a nod to the past

Today’s read: Auschwitz

Preserving a site and a ghastly inventory

Nation & World briefing

Need to know

A dangerous lack of legroom?

Cleaning through chemistry

559