Has the high-tech arms race begun? Google said that hundreds of Gmail users, including senior government officials in the United States, had been hacked by a group based in China.

Accounts belonging to hundreds of Gmail users, including U.S. government officials and political activists in in China, were hacked. Google has said that the hacking originated in China. The Chinese government has categorically denied any involvement with the hacking. However, China is paying attention to "information warfare," says Jeremy Goldkorn, who works for Danwei, a site that monitors the media in China.

The federal government shut down the Sky Express bus company indefinitely following a crash on Tuesday which killed four passengers and injured 50. The bus, traveling from Raleigh, North Carolina to New York City, was one of three major crashes involving discount, long-distance bus companies in the Northeast in May alone. 

Nearly 800,000 Native Americans living on reservations must rely on federal prosecutors to go after major crimes, including sexual assault, murder and other felonies, because state law enforcement agencies lack the legal right to intervene in tribal affairs. The process involves a written plea to federal prosecutors to pick up these cases which the tribal courts are fiscally and legally unable to fully prosecute.

The U.S. Department of Agriculture has decided to knock down the 20-year-old nutritional food pyramid and replace it with a simpler guide to healthy eating — a plate. Today the USDA will unveil how they think your dinner plate should look. But while the portion-divide plate might be a more digestible representation of a good diet, the question is will the message get through to people who really need to change their habits? Tony Geraci, former food service director for Baltimore City Schools and consultant for the Got Breakfast Foundation says that the USDA is addressing many health problems head on.

Thirty years ago this week, Dr. Michael Gottlieb identified a new disease in a paper he wrote for the CDC. Characterized by a severely damaged immune system, and primarily afflicting gay men, the syndrome would come to be known as AIDS. In the years since, over sixty million people — of both genders and all sexual orientations — have died of AIDS. Antiretrovirals have been developed, however there is still no cure.

The Dow fell almost 300 points on Wednesday in the steepest drop this year. Concern over a Greek debt default, Washington's fight over the debt market and declining housing prices have investors worried.

Stocks plummeted Wednesday after reports that the U.S. factory sector experienced its biggest one-month drop off in May since 1984. Weak factory sector figures, combined with dreary manufacturing data from around the world, and continuing high unemployment doesn't just present a political problem for the Obama White House. Some economists worry the economy could face a "double-dip" recession. "Financial crises are followed by slow recoveries," says Kelly Evans, "Ahead of the Tape" columnist for The Wall Street Journal.

Eighty percent of New York City's pollutants come from buildings and 20 percent from transportation. This is a reversal from most cities, which see pollution from transportation rather than high density buildings, explains New York's Mayor Bloomberg. The mayor is in Sao Paolo, Brazil for a meeting on climate change. "There's an awful lot that has to be done on a national and an international level, says mayor Bloomberg. "But at the same time, mayors are held accountable to deliver services and are trying to do things at a local level."

Shaq told his fans first in a video posted to Twitter, "I'm about to retire... love you!"  He and his size 23 basketball shoes are done with the game. "He could dance, he could move, he could pass," says Takeaway Sports contributor Ibrahim Abdul-Matin. He explains why Shaq was such a dominant force and what he might do next.

Joplin, Missouri is trying to pick up the pieces from last week’s massive tornado. In addition to killing 134 people, more than 8,000 homes and apartments were destroyed or damaged in the 200 mile an hour winds — between 25 and 30 percent of the housing market. The Federal Emergency Management Agency, FEMA, says more than 7,000 Joplin residents in Jasper and Newton counties have registered for assistance so far, and they are still assessing how to best assist them.

The basics of "Weinergate" are well established. Congressman Anthony Weiner (D-NY), has a Twitter account. The Friday before Memorial Day weekend, a picture was posted on Yfrog and tweeted from Weiner's account to that of a 21-year-old college student in Seattle. The picture, as most of the country knows by now, was a shot from the chest down of a man in his underwear. It was immediately deleted. Rep. Weiner claimed, on twitter, that he'd been hacked. Takeaway Washington correspondent Todd Zwillich has been watching this unfold. John Abell, New York Bureau Chief for Wired.com, discusses Rep. Weiner's assertion that "I was pranked, I was hacked, I was punked" and how a person might actually prove such a thing.

A new study shows a way to identify traumatic brain injuries, which have been previously undetectable lending light on why some people exhibit signs of brain injury even while CT and MRI scans are normal. This may have implications for military personnel who survive blasts to be deemed healthy even while they feel the effects of brain trauma. Dr. David L. Brody is the senior author the study says this is a "small, but important step forward... This method is a research method, not available yet for clinical practice."