National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Modeling the effect of DNA sequence variation on phenotypes such as gene expression faces unique challenges when deciphering inter-individual variation. This study presents a scalable and efficient ...

Survey Basics Online Surveys Telephone Surveys Voter Files International Survey Methods We often hear a candidate is leading, trailing, or the race is tied. This is based on “horse race” polling, ...

U.S. EPA. 2014. "Method 8270E (SW-846): Semivolatile Organic Compounds by Gas Chromatography/ Mass Spectrometry (GC/MS)," Washington, DC. EPA’s Selected Analytical Methods for Environmental ...

Tennessee Gov. Bill Lee paused statewide executions and ordered an independent inquiry after a prolonged, failed attempt to execute a woman on Sept. 30. Christa Pike, convicted of torturing and ...

LeJames Norman, 40, killed at Huntsville penitentiary while scheduled execution in Georgia halted by judge A man convicted over the shooting deaths of three people was executed on Wednesday in Texas, ...

Alabama executed prisoner Jeffery Lee, convicted of killing two people, on Thursday evening by lethal injection after the U.S. Supreme Court previously prevented the state from using nitrogen gas, ...

Three states are set to carry out executions this week in decades-old cases involving a total of seven murder victims. The executions will begin in Texas and Georgia, with each state planning to put a ...