At nonprofits, millions missing with little explanation

(Linda Davidson / The Washington Post)

A Post analysis found that more than 1,000 groups have had a “significant diversion” of assets since 2008.

Homes for the Taking

Homes for the Taking

The Washington Post carries out one of the first comprehensive studies of tax lien sales in the country.

Wealthiest in Congress prosper since recession

Wealthiest in Congress prosper since recession

CAPITOL ASSETS | A Washington Post investigation finds that lawmakers don’t get rich by merely being in Congress. Rich people who go there, though, tend to keep getting richer while they’re there.

Pentagon plans big expansion of its espionage operations overseas

Pentagon plans big expansion of its espionage operations overseas

Ambitious plan will assemble an espionage network that rivals the CIA in size, U.S. officials say.

Missions in virtual city train Pentagon’s soldier-hackers for cyberwar

Missions in virtual city train Pentagon’s soldier-hackers for cyberwar

PART SIX | “It might look to some people like a toy or game,” but program prepares government for digital attacks.

Drug firms’ influence over research grows

Drug firms’ influence over research grows

EXCLUSIVE | Even in the most respected of medical journals, pharmaceutical companies’ funding and other ties to studies open the door to bias.

No arrest. No charge. Case closed.

No arrest. No charge. Case closed.

MURDER UNDER THE MICROSCOPE | A Post examination in the District finds that police closed dozens of homicide cases without an arrest.

Many after-market motorcycle parts don’t meet standards, experts say

Many after-market motorcycle parts don’t meet standards, experts say

For generations, motorcycle lovers have customized their bikes. But what they may not know is whether after-market parts comply with federal and environmental standards.

D.C. police’s high closure rate raises flags

D.C. police’s high closure rate raises flags

An investigation of District homicide statistics shows that the much-touted 94 percent closure rate is the result of a statistical mishmash that makes things seem better than they are, according to records reviewed by The Post.

The hidden life of guns

The hidden life of guns

A Post investigation breaks years of secrecy on where region’s crime guns are sold and how they move through society.

Alaska Native Corporations

Alaska Native Corporations

After the attacks of Sept. 11, 2001, the Pentagon and other agencies awarded thousands of contracts without competition and proper oversight. In that rush, billions went to entities known as Alaska native corporations. Then the problems began..

Top Secret America

Top Secret America

“Top Secret America” is a project nearly two years in the making that describes the huge national security buildup in the United States after the Sept. 11, 2001, attacks.