As a warming planet delivers more extreme weather, experts warn that the Trump administration is dismantling the government’s disaster capabilities.In an effort to shrink the federal government, President Trump and congressional Republicans have taken steps that are diluting the country’s ability to anticipate, prepare for and respond to catastrophic flooding and other extreme weather events, disaster experts say. Staff reductions, budget cuts and other changes made by the administration since January have already created holes at the National Weather Service, which forecasts and warns of dangerous weather. Mr. Trump’s budget proposal for the next fiscal year would close 10 laboratories...