Senator Obama is an unknown quantity as he tours the Middle East.
Readers write about refusing orders, social entrepreneurs, and avoiding conflict with Iran.
Lebanon's new government is slated to review the militant Shiite party's weapons as part of a national defense strategy once it takes office. The prisoner swap with Israel has given Hezbollah new leverage.
The US also hopes to establish a diplomatic presence in Tehran for the first time in 30 years, according to the Guardian newspaper.