A couple generations ago, when older Americans retired they could rely on pension plans to support them. Then, in the late 1970s and early 1980s, many companies switched their retirement plans over to 401(k) accounts. The security of workers' retirement savings suddenly became subject to the vagaries of the stock market.

Days after the marathon bombing, officials established the One Fund for Boston to assist victims and their families. Attorney Ken Feinberg, who managed similar funds after Sept. 11 and Virginia Tech and is managing this fund, says there's no easy way to decide who gets how much of the $30 million that's been donated.

Update at 5:38 p.m. ET. One More IRS Official To Leave

Another official is out at the embattled agency.

The Associated Press reports that Joseph Grant, commissioner of the IRS' tax exempt and government entities division, will retire June 3. The division scrutinized Tea Party groups when the applied for tax-exempt status.

Update at 4:45 p.m. ET. Obama Names New IRS Acting Chief

A study published online recently in the journal Environmental Health Perspectives documented slightly elevated levels of arsenic in samples of chicken purchased at grocery stores in 10 cities in the U.S.

So how did trace amounts of this toxin end up in supermarket poultry?

Perhaps you've noticed a toddler's sagging swim diaper and wondered if it's really keeping the poop out of your neighborhood pool.

The Centers for Disease Control and Prevention has the answer for you: no.

Last summer, researchers at the federal public health agency collected 161 filter samples from public swimming pools in the Atlanta area. More than half of those samples, 58 percent, were contaminated with E. coli.

That, the CDC reported today, "signifies that swimmers introduced fecal matter into pool water."

Woody Herman, who would have turned 100 on Thursday, bloomed early and late — and then later still. He turned pro by age 9, singing and dancing in movie theaters on summer vacation. He'd perform one song deemed too risqué for radio when he recorded it decades later: "My Gee Gee From the Fiji Isles."

Some stories are indeed too good to be true.

This BBC headline had us punching the Two-Way control board to go to light speed in pursuit of appropriate puns:

"Star Wars and Doctor Who fans clash at Norwich convention"

Police in Albuquerque, N.M., are interviewing a man they say is a "person of interest" in the abduction of a five-year-old girl. After the girl was taken Wednesday evening, her mother chased down and rammed the car she had been in; a suspect fled on foot. Authorities say the girl is safe; she was pushed out of the car shortly after being taken.

Update at 3:30 p.m. ET. 'Person Of Interest' Found:

Before I tell you about J.J. Abrams' second Star Trek film, with its youngish new Starship Enterprise crew, let me say that just because I've seen every episode of the original Star Trek and of The Next Generation, and most of the spinoff series, and every movie, I'm not a Trekkie — meaning someone who goes to conventions or speaks Klingon or greets people with a Vulcan salute.

People smell yummy to mosquitoes.

So yummy, in fact, that our scent is a big way the pesky insects track us down.

But just how much mosquitoes like Eau de Human may not be entirely up to the bugs.

Mosquitoes are more attracted to human odors when they're infected with the malaria parasite, scientists reported Wednesday in the journal PLOS ONE.