Democratic Party Chairman Tim Kaine is defending first lady Michelle Obama's vacation trip to Spain, saying critics of her travels are trying to politicize the issue.

Kaine tells NBC's "Today" show he thinks "it's wrong" to talk critically about her trips. Critics contend they send a poor message at a time when many Americans are out of work.

Kaine said, "She's a mom." He said this was an opportunity for her to take nine-year-old daughter Sasha to a part of the world she hadn't seen before.

Kaine said President Barack Obama and Michelle Obama are "focused on being good parents." Mrs. Obama returned with Sasha to the White House late Sunday. Her trip occurred as Obama was celebrating his 49th birthday and their other daughter, 12-year-old Malia, was away at summer camp.

The family of four people killed in the crash of a Marine Corps jet in a San Diego County neighborhood two years ago sued the federal government and Boeing Wednesday.

The lawsuit was filed in U.S. District Court by Dong Yun Yoon, whose wife, two daughters and mother-in-law were killed in the December 2008 crash that incinerated two homes and damaged others in University City.

The suit accuses the military and Boeing, the aircraft's maker, of negligence and seeks unspecified damages.

The military disciplined 13 members of the Marines and Navy after the crash, which was blamed on mechanical problems and a string of bad decisions that led the pilot to bypass a potentially safe landing at Naval Air Station North Island in Coronado.

The suit claims the F-18 Hornet had "a history of warnings and system failures" related to its fuel system and never should have been cleared for takeoff.

Calls to Boeing after hours Wednesday were not immediately returned.

Court documents accuse the Marine Corps of making decisions "in violation of written military standards, which if complied with would have avoided the tragic ending."

Four members of a Korean family were killed in their home — Young Mi Yoon, 36; her daughters Grace, 15 months, and Rachel, 2 months; and her mother Suk Im Kim, 60. Kim was visiting from South Korea to help her daughter move across town and adjust to the arrival of her second child.

The pilot, Lt. Dan Neubauer, described in a statement to investigators how he struggled to control the malfunctioning jet in the minutes before the crash.

The pilot was on a training flight from the aircraft carrier USS Abraham Lincoln when he was forced to shut down one engine because of mechanical trouble. The hobbled jet was told to bypass a coastal Navy base that offered an approach over water and to instead fly inland over San Diego to Marine Corps Air Station Miramar.

Faced with expensive legal challenges, officials in the eastern Nebraska town of Fremont are considering suspending a voter-approved ban on hiring or renting property to illegal immigrants until the lawsuits are resolved.

The City Council narrowly rejected the ban in 2008, prompting supporters to gather enough signatures for the ballot measure. The ordinance, which was approved by voters last month, has divided the community. Supporters say it was necessary to make up for what they see as lax federal law enforcement and opponents argue that it could fuel discrimination.

But the council's president, Scott Getzschman, insisted the elected body was concerned about money, not about any lack of support for the ordinance. The City Council is scheduled to vote on suspending the ban on Tuesday night, a day before the city goes to court over the measure.

The city faces lawsuits from the American Civil Liberties Union and the Mexican American Legal Defense & Educational Fund. City officials have estimated that Fremont's costs of implementing the ordinance — including legal fees, employee overtime and improved computer software — would average $1 million a year.

Arizona officials plan to release a training program Thursday designed to teach police officers to enforce a tough new crackdown on illegal immigration without racially profiling.

An hour-long video and supporting paperwork will be sent to all 170 Arizona police agencies and publicly released Thursday morning.

Officials released an outline for the video in May.

It will emphasize the importance of professionalism, ethics and integrity, as well as an officer's duty to protect civil rights, according to the outline.

Retired immigration agents also will describe how federal officers are trained to avoid racial profiling and the documents that immigrants are required to carry.

And officers will be taught how to contact federal immigration authorities or local officers certified by the federal government to determine someone's immigration status.

Gov. Jan Brewer ordered the Arizona Peace Officer Standards and Training Board to develop the training when she signed the law April 23.

Police bosses will decide the best way to teach their forces. But there is no requirement that all 15,000 Arizona police officers complete the training before the law takes effect July 29.

Opponents have challenged the measure as unconstitutional and have asked that a federal court block it from taking effect. U.S. District Judge Susan Bolton plans to hear arguments on the request later this month.

Arizona's law generally requires police officers enforcing another law to question a person's immigration status if there's a reasonable suspicion that the person is in the country illegally.