NEW : Officials say security is stepping up at Uganda 's Entebbe airport and on Lake Victoria . The U.S. Embassy in Uganda is warning of a specific threat against Kampala Airport . U.S . Journalist Samson Ntale reported from Kampala , while CNN 's Barbara Starr reported from Washington and Laura Smith-Spark wrote in London . Homeland Security is boosting security measures at certain overseas airports . The steps are linked to new intelligence on terror groups and bomb threats .
NEW : Officials say security is stepping up at Uganda 's Entebbe airport and on Lake Victoria . The U.S. Embassy in Uganda is warning of a specific threat against Kampala Airport . U.S . Homeland Security is boosting security measures at certain overseas airports . The steps are linked to new intelligence on terror groups and bomb threats .