Injured Saudi is a witness, not a suspect, in Boston bombing  —  U.S. law enforcement officials said Tuesday that a Saudi national injured in the Boston Marathon bombing is regarded as a witness, not a suspect.  —  The Saudi, who is recuperating at a Boston hospital, is in his 20s …

PHOTOS of SAUDI NATIONAL Person of Interest in Boston Custody ...Update: Saudi Ruled Out as Suspect  —  Here is the Facebook page of the Saudi national guarded by federal agents at a Boston hospital.  —  Abdulrahman Ali Alharbi  —  The name was released by Townhall and Free Republic.

Second Boston Marathon victim identified: Krystle Campbell  —  A second victim in the Boston Marathon bombings has been identified: Krystle M. Campbell, a 29-year-old originally from Medford, Mass.  —  Her father, William A. Campbell Jr., told Yahoo News he's in shock that his daughter was killed.

Bomb Details Emerge in Boston Case  —  BOSTON — The explosives used to kill three people and injure 176 at the Boston Marathon on Monday were likely some kind of “pressure-cooker” devices that sent sharp bits of shrapnel flying into victims in the vicinity of the blast, several law enforcement officials said Tuesday.

FBI grills Saudi man in Boston bombings  —  ‘Smells of gunpowder’  —  An FBI investigator examines a bag inside an apartment in Revere, in a building on the street where a man being questioned in the bomb attack lives.  —  Police took a 20-year-old Saudi national into custody near the scene …

3 killed, more than 130 hurt by bombs at Marathon  —  Two bomb blasts, 12 seconds apart, rocked the finish line of the 117th running of the Boston Marathon Monday, killing at least three people, including an 8-year-old Dorchester boy, wounding more than 130, and leaving the sidewalks of Boylston Street covered in blood.

Pictured: Boy, 8, who was waiting to give his runner father a hug at finish line is named as one of three Boston Marathon bombing victims along with woman in her twenties while 152 are injured and 17 left in critical condition  — Martin Richard, 8, and woman in 20s among three confirmed dead …

An Al-Shabaab Link to Boston Marathon Bombings?  —  A series of Twitter gloats today raised questions about the possible involvement of Somali terror group Al-Shabaab in the Boston Marathon bombing.  —  No person or group has yet directly taken responsibility for the attack that killed three and wounded 176, 17 of those critically.

Is The Reinhart-Rogoff Result Based on a Simple Spreadsheet Error?  —  So this is huge.  Or, rather, it won't matter even a tiny little bit but it ought to be a big deal anyway.  You've probably heard that countries with a high debt:GDP ratio suffer from slow economic growth.

How Much Unemployment Was Caused by Reinhart and Rogoff's Arithmetic Mistake?  —  That's the question millions will be asking when they see the new paper by my friends at the University of Massachusetts, Thomas Herndon, Michael Ash, and Robert Pollin.  Herndon, Ash, and Pollin (HAP) …