Obama to attend Boston explosions victims' memorial service2013-04-17
U.S.President Barack Obama will head to Boston on Thursday after the deadly explosions rocked the city's well-known marathon race, the White House announced on Tuesday in a statement.

All-clear given after NY airport evacuation over suspicious package2013-04-17
Authorities said on Tuesday that all-clear has been given after part of New York's LaGuardia Airport was evacuated earlier in the day due to the report of a suspicious package.

"Only Two" explosive devices found after Boston marathon bombings2013-04-16
Massachusetts Governor Deval Patrick said on Tuesday"two and only two"explosive devices were found after Monday's bombings at Boston Marathon which killed three and injured at least.

Chicago tightens security after Boston Marathon attacks2013-03-16
Chicago police, transit agencies and emergency agencies have stepped up security following bombings at the Boston Marathon on Monday.