Trial of Islamic State suspects shows Turkish security flaws before bombings

ANKARA (Reuters) - For two years, Haci Ali Durmaz says he used to cross the Turkish border into Syria, join the ranks of Islamic State for a few months, and then return to Turkey to work in construction.

Now on trial for involvement in Turkey's deadliest suicide bombing, an attack last year that killed more than 100 people in Ankara, his testimony has highlighted flaws in border security and intelligence which lawyers say has allowed parts of Turkey to become a rear base for jihadists.