Negative Emissions and Storage: Direct Air Capture and Carbon Capture Sequestration

For the technology of Carbon Capture Sequestration (CCS),

1. what CCS is nad the resources available
2. the current limitations of CCS
3. the costs of CCS, and estimated future costs reduction as a result of potential improvement
4. Political strengths of CCS for energy policy goals (climate/decarbonization, energy security, energy access, and economic growth/affordability)
5. Current policies on CCS or that impact CCS.