But I'm not willing to let working families across this country become collateral damage for political warfare here in Washington.

WHITEHOUSE: President Obama on Tax Cuts and Unemployment Extension

Yes, she would augment that system with better-educated (and compensated) teachers, a strong core curriculum, a different (curriculum-based) approach to assessment, greater emphasis on behavior and attitudes and a number of collateral "social" changes such as better families and home environments.

FORBES: Magazine Article

The preliminary investigation established that members of two Iraqi families were indeed killed by the marines, though it described the deaths as collateral damage.

BBC: NEWS | Middle East | US military probes Iraq killings