A day after flight delays plagued much of the U.S., air travel is smoother Tuesday. But the government is warning passengers that the situation can change by the hour as it runs the nation's air traffic control system with a smaller staff.

A second Mississippi man says the FBI is searching his home in connection with the ricin letter case.

The Senate's second-ranking Democrat is pressing the Obama administration to explicitly spell out its justification for using drones for targeted killings.

A Philadelphia couple - serving 10 years' probation for the 2009 death of their toddler after they turned to prayer instead of a doctor - has violated their probation now that another of their children has died.

A weekend news anchorman for a North Dakota television station says he was fired after he opened his first-ever broadcast with obscenities.

More discussion is likely Tuesday of the mental state of the Mississippi man accused of mailing poisoned letters to President Barack Obama, a U.S. senator and a local judge.

Over the last five years, American hospitals have sent at least 600 immigrants who were in the U.S. illegally back to their home countries to avoid paying for long-term care after serious illness or injury.

Tax-free shopping on the Internet could be in jeopardy under a bill making its way through the Senate.

A new report suggests teens and parents aren't talking about prescription drug abuse as much as they should.

Police say a man killed his live-in girlfriend at an apartment complex south of Seattle then fatally shot three men, including one who had phoned 911 to report hearing gunfire.

The austerity pain pursued by a number of European countries led to very little gain in 2012.

The Labor Department is ending its freeze on new enrollments in the nation's federal Job Corps program, but budget constraints mean fewer youths will be admitted in the future.

Federal officials say they're delaying a policy that would allow passengers to carry small knives, bats and other sports equipment onto airliners.

More is emerging about the criminal case against the surviving suspect in the Boston Marathon bombings.

A bill that would allow states to collect sales taxes for Internet purchases has passed a test vote in the Senate.

Nearly 42 million people watched the last hour of Friday's manhunt for the Boston Marathon bombing suspect on television.

Police say a man killed his live-in girlfriend at an apartment complex south of Seattle then fatally shot three men, including one who had phoned 911 to report hearing gunfire.

No one under 21 would be able to buy cigarettes in New York City under a proposal unveiled Monday to make the city the most populous place in America to set the minimum age that high.

Boston Marathon bombing suspect Dzhokhar Tsarnaev was charged in his hospital room Monday with using a weapon of mass destruction to kill, and he could get the death penalty.

Former New York state Rep. Anthony Weiner has returned to the forum that led to his political downfall in 2011, launching a new Twitter account.

American teenagers aren't doing as poorly on international science tests as adults think. Despite the misconceptions, the adults surveyed still don't think the subject should get greater emphasis in schools.

The man charged with mailing ricin-laced letters to the president and a senator is expected back in court Monday, and the hearing could reveal what evidence authorities have collected.

Police say five people are dead in a shooting at an apartment complex south of Seattle, including a suspect who was shot by officers responding to the chaotic scene.

Commercial airline flights moved smoothly throughout most of the country on Sunday, but experts say the first real test is Monday when traffic increases amid furloughs of air traffic controllers resulting from government spending cuts.

Reese Witherspoon is "deeply embarrassed" about what she said to police officers during her arrest Friday morning in Atlanta.