Investigators are already facing serious technical obstacles.
The plane faces many technical obstacles if it is to take off from an airport and reach the 17,000 mile-an-hour speed necessary to penetrate the atmosphere and enter orbit.
It faces daunting technical obstacles.
The British were optimistic about gaseous diffusion, but it was clear that both gaseous and centrifugal methods faced formidable technical obstacles.
The campaign faces economic and technical obstacles.
For a start, wave energy has lagged behind wind and solar, because the technology is much younger and still faces some big technical obstacles.
On the one hand, telecoms companies have spent vast sums on licences for third-generation (3G) wireless services but are facing serious financial and technical obstacles to building networks.
Technical obstacles faced by deafblind athletes are classical engineering challenges: on-field positioning, path-following navigation, range finding, collision detection, peer-to-peer communication and object identification (friend or foe).
Given the many political and technical obstacles facing the OECD another one is the increased difficulty of forging consensus as developing countries, with their own concerns, are brought on board corporate tax-planners are unlikely to lose any sleep just yet.
4 Alzheimer's patients face social, 5 economic, 6, 7 and technical obstacles to complete oral health: loss of cognitive and motor skills, loss of autonomy, physiological modifications, impaired adaptation processes, lack of compliance decreasing care access possibilities.
