Secret Service Director Julia Pierson steps down in wake of recent presidential security breaches.
Ebola patient undergoes treatment in Texas as health officials work to stop any possible spread of infection.
Since its creation, NASA has landed 12 astronauts on the moon and 4 rovers on mars.
Rhode Island's health department says a 10-year-old girl died last week with Enterovirus D68 and a staph infection.
Health officials vow to halt potential spread of Ebola inside the United States after confirmation of case in Texas.
The Secret Service Director was on Capitol Hill undergoing tough scrutiny from lawmakers.
Displaced Iraqis search for permanent homes.
Secret Service Director Julia Pierson testifies before Congress in wake of recent security lapses.
Man charged in murder of Arkansas Realtor Beverly Carter discusses the crime while being escorted to court.
Investigators say forensic evidence ties kidnapping suspect to previous murder and sexual assault.
CNN's David Mattingly visits the mosque where Alton Nolen worshipped.
Despite signs of extremism, FBI says suspect is not linked to terrorist groups.
Investigators say forensic evidence ties kidnapping suspect Jesse Matthew, Jr. to murder of Virginia Tech student Morgan Harrington.
Body of missing Realtor Beverly Carter found after suspect confesses to Police. Web Extra Included
After several security breaches, lawmakers will put Secret Service Director Julia Pearson on the hot seat.
For a fourth straight day, air service out of Chicago O'Hare remains crippled by delays and cancellations, following Friday's fire.
The President admits that U.S. intelligence underestimated ISIS, and as military strikes continue, there is a brewing battle at home as to whether Congress needs to authorize the military.
Police to file charges against suspect in beheading of Oklahoma woman.
They'll have a full docket of hot-button issues to decide.
Nearly half, 45-percent, think ISIS poses a very serious threat to the United States.
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Economists say student loan debt is dragging down the economy.
Pennsylvania authorities continue their search for survivalist and suspected cop killer Eric Frein.
President Obama calls on other nations to work to prevent young extremists from traveling abroad to join jihad.
According to a recent Pew Research study, one in five adults ages 25 and older have never been married.
President Obama speaks at the U.N. General assembly, touching on topics from terrorism to climate change.
The Obama Administration says more air attacks on ISIS targets in Syria are coming, and military experts say we could be doing this for a while.
Officials say more than 100 ISIS fighters and other militants were killed in the first round of U.S. led airstrikes inside Syria.
President Obama addresses what the U.S. can do to battle climate change at U.N. summit.
The Centers for Disease Control has dire predictions for the Ebola outbreak in West Africa if the fast spreading virus is not brought under control soon.
Coalition airstrikes target ISIS forces in Syria.
The doctor plans to make his decision about running for the Republican nomination before May.
A new set of corporate tax rules may keep more companies in the US.
American fighter jets have started bombing in Syria, but we're not going it alone.
Man who stormed White House Friday appears in court; security procedures under review.
California fire crews fan out in attempt to reign in massive "King Fire" burning in Placer County.
The President will stand before the United Nations later this week to discuss a number of topics.
Nationally, the price of gas fell 6 cents in the past week, marking a seven week decline.
French jets strike ISIS targets in Iraq; work on broader coalition continues.
Customers around the globe line up for the new iPhone 6.
A report by the investigative arm of congress, The Government Accountability Office, shows the website still has room for improvement.