The "D" model of an AIM-120 has a range out to 86 nm and Mach 4 speed, not much shorter than a 1970s Phoenix missile. While a new missile having a range out to or beyond 100 miles would be nice, the actual barrier, as it was with the Phoenix, could be the rules of engagement imposed in WashDC. I wonder if one prospective target might be hypersonic weapons.