Sure, if it is a few miles wide, we have months to plan the flight, and constantly measure and tweak the trajectory for a couple more months.
Other than the speed, I don't see a whole lot of similarity between the two events.
/not a scientist
//didn't stay at a Holiday Inn Express
The basic technology is the same. Trajectory isn't a real problem, the real problem is countermeasures and debris. We actually do have months and years to plan for an attack, the trajectories available to an attacker are constrainted by the laws of physics.
Part of the "game" is to place as much doubt in the mind of a potential attacker as possible. A ballistic missile fired at the United States would result in awesome retaliation regardless of the outcome (assuming no one named Clinton is president). A suicidial (think Japan 1945) or fanatical (too many to list: Nazi Germany, Stalinist Russia, Tojo's Japan, Iran, the Taleban ...) regime might think twice if they thought the attack might be unsuccessful.