Sicknick, who engaged with pro-Trump rioters during the Jan. 6 insurrection, died after suffering strokes, Washington, D.C.'s chief medical examiner says.
Russian hackers exploited gaps in U.S. defenses and spent months in government and corporate networks in one of the most effective cyber-espionage campaigns of all time. This is how they did it.
Two dozen U.S. senators sent a letter to the White House outlining steps to shutter the crumbling military prison in Guantánamo Bay, Cuba, where many men have been held uncharged for nearly 20 years.
Russian Foreign Minister Sergey Lavrov announced new sanctions Friday. The U.S. imposed its new sanctions on Russia on Thursday in response to the SolarWinds cyberattack and interference in elections.
The Afghan military remains heavily dependent on U.S. equipment, training and money. It's far from clear how effective this U.S. assistance will be once American troops are gone.
President Biden is ordering a new round of economic sanctions that include restrictions on dozens of Russian entities and the expulsion of some Kremlin diplomats.
Al-Qaida is degraded but not defeated. Analyst Colin Clarke assesses where the U.S. may be mapping out its future counterterrorism presence after withdrawing from Afghanistan.
U.S. Secretary of State Antony Blinken arrived in Kabul on Thursday in a visit that comes on the heels of President Biden's announcement that all U.S. troops will leave Afghanistan.
Locking down the Capitol "defeats the purpose of having the people's house that is available and open to constituents," says Karen Gibson, who helped review the Jan. 6 assault on the building.
Responding to a critical inspector general's report, the U.S. Capitol Police acknowledges that "much additional work needs to be done," but that it will need "significant resources" from Congress.
President Biden's argument that a $2 trillion infrastructure proposal would help the U.S. compete with China says a lot about how the president is approaching foreign and domestic policy.
The top U.S. intelligence officials detailed concerns to the Senate Intelligence Committee on Wednesday, with many questions raised about cyberthreats and espionage targeting U.S. technology.
More than 400 people are charged in the Jan. 6 riot, but one suspect remains elusive to law enforcement: the person who left bombs near the Democratic and Republican national committee headquarters.