PHILADELPHIA (AP) — Dr. Hilary Koprowski, a pioneering virologist who developed the first successful oral vaccination for polio, died this week at his suburban Philadelphia home. He was 96.

SARATOGA, Calif. (AP) — The parents of a 15-year-old California girl who took her own life after she was sexually abused and an explicit photo of the assault circulated among her classmates want the three boys who have been arrested in the case prosecuted as adults, a lawyer for the family says.

SAN FRANCISCO (AP) — Looking for a career change, Ken Shimizu decided he wanted to be a software developer, but he didn't want to go back to college to study computer science.

WASHINGTON (AP) — A bipartisan immigration bill soon to be introduced in the Senate could exclude hundreds of thousands of immigrants here illegally from ever becoming U.S. citizens, according to a Senate aide with knowledge of the proposals.

LONDON (AP) — With $600 stuffed in one pocket and a smartphone tucked in the other, Patricio Fink recently struck the kind of deal that's feeding the rise of a new kind of money — a virtual currency whose oscillations have pulled geeks and speculators alike through stomach-churning highs and lows.

JEFFERSON CITY, Mo. (AP) — Storms packing rain, snow and dangerous winds raked the Midwest and spawned a possible tornado near St. Louis that prompted an emergency declaration from Missouri's governor.

WASHINGTON (AP) — The Senate is ready to launch an emotion-charged debate on new gun restrictions, four months after the carnage at a Connecticut elementary school spurred President Barack Obama and Congress to address firearms violence.