Gregory Johnson says politicians can become mesmerised by this one tactic.

BBC: Is Obama's drone doctrine counter-productive?

Gregory Johnson of Princeton University says that in recent years, the Yemeni government has had its hands full trying to deal with other, larger revolts that had nothing to do with al-Qaida.

NPR: Embassy Attack Marks Rise Of Al-Qaida In Yemen

"You can't have a venture economy with only one VC firm in town, " says Gregory Johnson, a general partner at Gateway Associates, which invests nearly half of its funds in high-tech companies in and near St.

FORBES: Yes, there is a pulse