
The U.S. Capitol Black Police Association is staging a protest on Tuesday against what members decry as a hostile and discriminatory work environment.

A Mississippi man was arrested Wednesday, accused of sending letters to President Barack Obama and a senator that tested positive for the poisonous ricin and set the nation's capital on edge a day after the Boston Marathon bombings.

An envelope addressed to a U.S. Senate office tested positive for the deadly poison ricin Tuesday, launching a criminal investigation and prompting warnings to other offices to take precautions with their mail.

Democratic National Committee head Debbie Wasserman Schultz asked members of the Capitol Police to help out her suffering staffers who had to wait in long security lines to get to their office.

A gunman opened fire at the New Castle County Courthouse in Delaware early Monday morning, killing two and wounding several, including at least two Capitol Police officers.

Senate Majority Leader Harry Reid was discharged from the hospital less than three hours after an apparent rear-end crash Friday afternoon on a Las Vegas freeway, a hospital spokeswoman said.

As the wars in Afghanistan and Iraq wind down, the industries that back America's military muscle will see the need to market their products for domestic use. Machines that work wonders in a soldier's hands don't necessarily belong on Main Street.

The U.S. Capitol Police force is investigating a reported threat against Sen. Marco Rubio, Florida Republican, who often is mentioned as a possible vice presidential pick for presumptive GOP presidential nominee Mitt Romney.