Three agents accused of cavorting with prostitutes during a trip to Cartagena as part of the "advance" team working on President Obama's trip to Colombia are leaving the agency.

The AP reports:

"Of the three workers forced out in the scandal, one is a supervisor who was allowed to retire. Another is a supervisor who has been designated for removal for cause, which requires that the employee be given 30 days' notice and a chance to respond with the help of a lawyer; and a third employee, not a supervisor, has quit.

Now that he's all but certain to be the Republican challenging President Obama in November, Mitt Romney has begun to expand his operations. In the past week, he's named a top aide to head his vice presidential selection team, and his paid staff is expected to soon quadruple in size.

With the president's campaign well-staffed and spread across the map, it's become a game of catch-up for Romney.

There are Republican primary contests in five important states next Tuesday, but with Rick Santorum's departure from the race, they've gotten little attention.

I'm an English professor, and I spent the first 15 years of my career trying to write like one. You might be surprised by what that's like. We don't emulate the fiction writers we most admire. We too rarely practice what we preach to our composition students — namely that good writing is simple and direct. In fact, we're notorious for maze-y sentences and ugly jargon. The point seems less to attract readers with clear prose than to smack them over the head with a sign that says, "Aren't I smart?"

Seattle's Space Needle turns 50 on Saturday. Originally built as a tourist attraction for the city's 1962 World's Fair, the structure was meant to evoke the future. Now the future is here, and the Needle has become the city's favorite antique.

Peter Steinbrueck traces the tower's lineage to an abstract sculpture that sits in his office. Steinbrueck is an architect and former City Council member, and the sculpture used to belong to his father, Victor, also an architect.

The House is scheduled to vote Thursday on a GOP measure to cut taxes on small businesses.

Now, the mental image most of us have of a small business is probably something like this: a handful of employees, a shop, maybe a restaurant or a little tech firm.

It turns out the reality of the nation's 28 million small businesses is, in many cases, quite different.

House Republicans say their tax cut would help millions of small businesses.

The Vatican has ordered a crackdown of an American organization representing most nuns in the United States. The Vatican ordered an investigation of the group in 2008 and today it said it was appointing an American archbishop to oversee a reform of the group.

The AP reports:

Liberia has been better known for conflict than tourism the past couple of decades.

But this week, a group of 150 tourists, many of them Americans, arrived for a brief stay in the small nation on Africa's West Coast. When their cruise liner docked in the capital of Monrovia, they became the largest group of tourists to visit the country in many years, probably since the 1970s.

Dock workers in Monrovia usually unload cargo ships full of secondhand clothes or rice — not a cruise ship full of American tourists.

The top financial official for the small city of Dixon, Ill., is accused of stealing more than $30 million from city coffers over the past six years. It's a staggering amount of money for the city of just 15,000 residents in northwest Illinois, and federal prosecutors allege she used the funds to finance a lavish lifestyle that included horse farms and a $2 million luxury motor home.

The Environmental Protection Agency announced new rules Wednesday to control the problem of air pollution coming from wells being drilled by the booming oil and natural gas drilling industry.

Currently, waste products from the drilling operations, which include a mix of chemicals, sand and water, can be pumped into open enclosures or pits, where toxic substances can make their way into the air. The new rules will require this fluid to be captured by 2015, and flared — or burned off — in the meantime.

NBC has announced it plans to live-stream every event at the Summer Olympics where it has cameras.