US President Barack Obama (L) speaks before signing a strategic partnership agreement with Afghan President Hamid Karzai at the Presidential Palace in Kabul.The wall of secrecy surrounding Obama's visit to Afghanistan on Tuesday cracked slightly under continuous chatter on Twitter in a country obsessed with the instant communication site
US President Barack Obama (L) speaks before signing a strategic partnership agreement with Afghan President Hamid Karzai at the Presidential Palace in Kabul. The wall of secrecy around Obama&#39;s visit to Afghanistan Tuesday cracked slightly under continual chatter on Twitter in a country obsessed by the instant communication site