United States budgetary costs of Post-9/11 wars through FY2018

Originally published on the Watson Institute's Costs of War Project website: http://watson.brown.edu/costsofwar/papers/2017/USBudgetaryCostsFY2018The costs to the United States of post-9/11 wars will total more than $5.6 trillion by the end of fiscal year 2018, a new Costs of War report finds, and the average American taxpayer has spent$23,386 on these wars since 2001. “The U.S. wars in Iraq, Syria, Afghanistan and Pakistan, and the increased spending on homeland security and the departments of defense, state and veterans affairs since the 9/11 attacks have cost more than $4.3 trillion in current dollars through fiscal year 2017,” said Neta Crawford, Costs of War co-director and a professor of political science at Boston University. “Adding likely costs for fiscal year 2018 and estimated future obligations for veterans’ care, the costs of war total more than$5.6 trillion.

Afghanistans Rising Civilian Death Toll Due to Airstrikes, 2017-2020

When the United States tightens its rules of engagement and restricts air strikes where civilians are at risk, civilian casualties tend to go down; when it loosens those restrictions, civilians are injured and killed in greater numbers. In 2017 the Pentagon relaxed its rules of engagement for airstrikes and escalated the air war in Afghanistan. The aim was to gain leverage at the bargaining table. From 2017 through 2019, civilian deaths due to U.S.and allied forces' airstrikes in Afghanistan dramatically increased

A New Survey for Giant Arcs

We report on the first results of an imaging survey to detect strong gravitational lensing targeting the richest clusters selected from the photometric data of the Sloan Digital Sky Survey (SDSS) with follow-up deep imaging observations from the Wisconsin Indiana Yale NOAO (WIYN) 3.5m telescope and the University of Hawaii 88-inch telescope (UH88). The clusters are selected from an area of 8000 deg^2 using the Red Cluster Sequence technique and span the redshift range 0.1 < z < 0.6, corresponding to a comoving cosmological volume of ~ 2 Gpc^3. Our imaging survey thus targets a volume more than an order of magnitude larger than any previous search. A total of 240 clusters were imaged of which 141 had sub-arcsecond image quality. Our survey has uncovered16 new lensing clusters with definite giant arcs, an additional 12 systems for which the lensing interpretation is very likely, and 9 possible lenses which contain shorter arclets or candidate arcs which are less certain and will require further observations to confirm their lensing origin. The number of new cluster lenses detected in this survey is likely > 30. Among these new systems are several of the most dramatic examples of strong gravitational lensing ever discovered with multiple bright arcs at large angular separation. These will likely become 'poster-child' gravitational lenses similar to Abell 1689 and CL0024+1654. The new lenses discovered in this survey will enable future sysetmatic studies of the statistics of strong lensing and its implications for cosmology and our structure formation paradigm.Comment: 19 pages, 7 pages of Figures, submitted to AJ. Fixed Typo

Principia Leviathan

The moral duties of the United States in Iraq cannot be separated from the larger question of the security requirements of the United States and its larger moral duties as the world’s preeminent military and economic power. Moreover, even after the United States leaves Iraq these questions will not disap- pear, not least because it may find itself occupying more states in its war on ter- ror and against rogue states