WORST-CASE SCENARIOSBush wrecks the worldhttp://news.yahoo.com/s/ap/20080222/ap_on_re_mi_ea/turkey_iraq[10,000] Turkish troops launched a ground incursion across the border into Iraq in pursuit of separatist Kurdish rebels, the military said Friday — a move that dramatically escalates Turkey's conflict with the militants.It is the first confirmed ground operation by the Turkish military into Iraq