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Colorado ski areas finish season with 11.86M skier visits, up slightly from last season

Colorado skier visits up slightly this season

UC Berkeley plan to test freshmen DNA comes under fire, school says hope is to spur dialogue

UC Berkeley plan to test freshmen DNA criticized

SAT prep co. changes claims, raising question: can kids boost scores A, a lot, or B, not much?

SAT prep company stops claiming 255-point boost

Army’s recall of 44,000 combat helmets the result of a Justice Department investigation

Army helmet recall follows investigation

WASHINGTON — A Justice Department investigation into whether an Ohio-based military contractor took shortcuts in its production of military combat helmets has led to a massive Army recall.

Lettuce recall expands to Tennessee, 23 sickened by E. coli poisoning

Lettuce recall expands to Tennessee

WASHINGTON — An outbreak of E. coli poisoning has expanded to Tennessee, where one more person has been sickened after eating romaine lettuce grown on an Arizona farm.

Lettuce recall expands as FDA investigates Arizona farm as source of E. coli outbreak

Lettuce recall expands as FDA investigates E. coli

Students sickened in E. coli outbreak; FDA investigating Ariz. lettuce farm

E. coli outbreak may be from Arizona lettuce farm

3 critically ill in E. coli outbreak of strain; FDA investigating Ariz. lettuce farm

FDA investigating E. coli at Ariz. lettuce farm

3 critically ill in E. coli outbreak of strain that may be hard to ID; Ariz. lettuce recalled

Lettuce recalled in 23 states; E. coli suspected

E. coli suspected in 19 sickened, including 3 critical; AZ lettuce recalled from 23 states

E. coli forces lettuce recall; 19 ill in 3 states

19 people in 3 states sickened by E. coli outbreak; tainted lettuce is suspected

E. coli outbreak sickens 19 people in 3 states

E. coli outbreak possibly linked to lettuce sickens 19 in OH, NY, MI; college campuses hit

E. coli sickens 19 in OH, NY, MI

WASHINGTON — An E. coli outbreak possibly linked to tainted lettuce has sickened at least 19 people in Ohio, New York and Michigan, including students on three college campuses, prompting a recall throughout much of the country.

E. coli outbreak linked to lettuce sickens 19 in OH, NY, MI; college campuses hit

E. coli sickens 19 in OH, NY, MI

WASHINGTON — An E. coli outbreak possibly linked to tainted lettuce has sickened at least 19 people in Ohio, New York and Michigan, including students on at least two college campuses, prompting a recall throughout much of the country.

Tossing caps, recycling gowns: ‘green’ graduation trend grows on eco-conscious campuses

Green graduation: Gowns now recycle or biodegrade

AP National News Calendar

AP National News Calendar

Eds: Major scheduled events for May 2010. Note that many events are subject to change at the last minute.

Psychedelic psychotherapy? Study tests magic mushroom drug to aid treatment of cancer anxiety

Psychedelic trips aid anxiety treatments in study

Spat between Ala. dental nonprofit, mainstream dentists may foreshadow future under Obama plan