Given that Russia has already teamed up with India to co-develop and co-produce a version of Moscow's fifth-generation fighter, and that China is co-developing with Pakistan a very low-cost fourth-generation fighter, the U.S. may decide to try and protect market share and lift an export ban on F-22s.
Tamerlan Tsarnaev and Mr. Todashev did share some commonalities on the surface, said Damien Trites, an MMA fighter who trained closely with Mr. Todashev and knew Mr. Tsarnaev.