Disputes Snarl US-Afghan Talks -Two Sides Split on Fundamental Issues -- KABUL—U.S. and Afghan negotiators are far from agreement on some fundamental issues in talks on a long-term American military presence here, senior officials in both countries said, with the Pentagon warning that further delays could scuttle the deal altogether. --- With much of the so-called Bilateral Security Agreement already completed by lower-level negotiating teams, disagreements on critical issues, including how the U.S. forces would respond to external aggression and what latitude they would have in counterterrorism operations, must now be tackled at the highest level, Afghan President Hamid Karzai's spokesman Aimal Faizy told The Wall Street Journal. - wsj.org