updated 11:44 AM EDT, Tue July 22, 2014
Ukraine's president says the downing of MH17 was a terrorist act, but Richard Barrett says it would be considered terrorism only if it was intentional
Les Abend says threat information that pilots respond to is only as good as the intelligence from air traffic controllers and cooperating governments. And none of it is a match for a radar-guided missile
Sally Kohn: The world's fish and waters are polluted and under threat. Be very careful what fish you eat
Jeronimo Saldana and Malik Burnett say Gov. Perry's plan to send National Guard to the border won't solve the escalating immigration problem. At its core is the longstanding drug war the U.S. in Central and South America.
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