A Taliban commander leads prison attack in Pakistan , freeing 250 prisoners . Peter Bergen : Jihadists have led jailbreaks in Middle East and South Asia for years . Bergen : Huge numbers are likely to join terrorists ' ranks and score propaganda hits . U.S. needs to help make prisons vulnerable to attacks much more secure , he says .
A Taliban commander leads prison attack in Pakistan , freeing 250 inmates . Peter Bergen : Jihadists have conducted jailbreaks in Middle East and South Asia for years . Bergen : Huge numbers are freed to join militants ' ranks and score propaganda coups . U.S. needs to help make prisons vulnerable to attacks much more secure , he says .