Military Updates Plan To "Capture or Kill" Benghazi Attack Suspects

Military personnel could be sent to Libya

The U.S. military has updated plans to "capture or kill" alleged perpetrators of the deadly terror attack on the American diplomatic compound in Benghazi, Libya, CNN has learned.

The development comes amid growing pressure on the White House to show progress in the effort to catch those who killed Ambassador Christopher Stevens and three other Americans last September 11.

Officials emphasize that military planning has been underway since the immediate aftermath of the armed assault.

One part of the plan calls for potentially putting U.S. military personnel on the ground inside Libya, if ordered by President Barack Obama.