Attacks like Sunday's mass shooting in Orlando, Florida, bring public shock and frustration along with a return to questions about what the government can do to prevent something similar from happening again. Marielle Harris, a senior researcher at the Counter Extremism Project, told VOA it is unclear yet how much direct support the shooter may have had. But she said the situation was mutually beneficial, with Mateen able to act on behalf of a powerful organization and Islamic State getting to claim an attack that has dominated Western media.