Martin Kaste

Police departments have come under increased scrutiny from the Obama administration as the Justice Department's Civil Rights Division steps up investigations of corruption, bias and excessive force.

Some of the targeted law enforcement agencies have had ethical clouds hanging over them for years — the New Orleans Police Department being the prime example — but others, like the Seattle Police Department, aren't exactly usual suspects.

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The lawyer for the soldier suspected of killing unarmed Afghan civilians last week says his client may have suffered from diminished capacity, or in other words a mental breakdown. That possibility has focused attention on the Army's ability to detect and treat psychological problems among soldiers. NPR's Martin Kaste reports on how the Army's system works in theory and in practice.

There is still only sketchy information available about Staff Sgt. Robert Bales' recent experience in Afghanistan, but five years ago in Iraq, he was considered an excellent and upbeat soldier.

Bales is suspected of killing 16 unarmed Afghan civilians last Sunday. He has yet to be charged, and his civilian lawyers say they will meet with him at Fort Leavenworth, Kan., to learn the facts of the case.

Former Massachusetts Gov. Mitt Romney pulled ahead of his rivals in Washington State's presidential straw poll on Saturday, with more than one-third of the votes. Romney finished well ahead of Ron Paul, who himself squeaked past Rick Santorum by just over 500 votes. Newt Gingrich had to settle for about one vote in 10.

Mandatory DNA collection is fast becoming routine in the American criminal justice system. In many jurisdictions, just being arrested can mean having to submit a genetic sample to the national database. Federal law enforcement and 26 states now permit various forms of pre-conviction DNA sampling and more states are poised to follow suit.

President Obama is feeling election-year pressure on the pending decision over the Keystone XL pipeline. Republicans say the Canadian project would provide the U.S. with oil and new jobs, but environmentalists want him to block it. They say Alberta's oil sands generate more greenhouse gases than other kinds of oil, and Americans must not become dependent on such a dirty source of energy. But it may already be too late to change that.

For some of America's lowest-paid workers, the new year means a pay raise. Some states set their own minimum wages, above the federal rate of $7.25 an hour, and that rekindles an old debate over whether minimum wages make sense — especially at a time of high unemployment.

Like several other states, Washington state's minimum wage is indexed to the cost of living. This year, the formula has raised the statewide minimum from $8.67 to $9.04 an hour, making it the nation's highest statewide rate.

This fall American police were confronted with something they hadn't seen in 40 years: prolonged, simultaneous political protests across the country. In most cities, police showed restraint. But there have been exceptions — sometimes involving copious amounts of pepper spray. Those flashpoints have become a cause for concern.

Hundreds of Occupy protesters marched to Seattle's Harbor Island Monday, and briefly blocked traffic coming into the city's busy port. The Seattle protest was the culmination of a day of coordinated protests at ports up and down the West Coast.